What I like most about Slack is that it centralizes communication, file sharing, and team coordination in one place. I use Slack daily for internal communication recruitment coordination, marketing discussions, sharing candidate updates, tracking project conversations, and quick collaboration between teams. Before Slack, a lot of our communication happened through email and multiple messaging apps, which made follow-ups harder and file tracking messy.

The feature I relied on most was message and file search. It let me quickly pull up old conversations, resumes, Google Sheets links, shared documents, and project discussions without wasting time scrolling through long chat histories or digging through email threads. In both recruitment and marketing work, this saved a lot of time because I could retrieve important information instantly, even from older conversations.

I also regularly used the Google Workspace integration to share Docs, Sheets, Drive files, and meeting-related updates directly in channels. This improved the workflow since teams could collaborate in real time without constantly switching between applications. Notifications and integrations worked reliably most of the time across desktop, web, and mobile.

The UI is straightforward and easy to understand, which made onboarding smoother for new team members. Even non-technical users on our team adapted quickly. Channels also helped keep conversations organized by department and by project, reducing confusion compared to communication scattered across different platforms.

Performance has been stable overall, especially for messaging, huddles, and file sharing. I found audio huddles particularly useful for quick discussions, since many issues could be resolved immediately instead of scheduling longer meetings for small updates. The mobile app was also helpful during remote work because I could continue conversations and review updates while away from my system.

The AI summary and search-related improvements are helpful in busy channels with a large number of unread messages. They make it much faster to catch up on discussions after meetings or time away from work.

From a productivity and ROI perspective, Slack reduced unnecessary emails, improved response times between teams, and made collaboration more organized for day-to-day operations. Overall, it became one of the main communication tools I used throughout the workday for coordination, updates, and collaboration across multiple tasks and teams. Review collected by and hosted on G2.com.

One thing I dislike about Slack is how quickly notifications can become overwhelming, especially when I’m juggling multiple active channels and projects at the same time. During recruitment coordination and marketing-related communication, there were days when the constant pings from ongoing discussions, automated integration updates, and general channel activity made it difficult to stay focused on priority tasks. Even after adjusting notification settings, important messages can still get buried under the overall volume.

Another issue I’ve noticed is that the desktop app can occasionally feel heavy on system resources, particularly when multiple workspaces, huddles, and integrations are running at once. I used Slack on the web, desktop, and mobile, and while performance was generally stable, I did run into occasional slowdowns when sharing large files or trying to load older conversations in busy channels.

Search works well overall, but in channels with a long history, tracking down very specific discussions can still take multiple attempts and a fair amount of filtering. AI summaries are helpful for catching up on missed messages, but they sometimes miss smaller contextual details in longer threads.

From an onboarding and usability perspective, the platform is straightforward, but large workspaces with too many channels can become cluttered over time. Better workspace organization, along with smarter notification prioritization, would improve the experience further. Review collected by and hosted on G2.com.

Slack provides a highly intuitive user experience that simplifies collaboration across various channels and groups. Managing communication across multiple organizations without switching roles keeps my workflow incredibly smooth. Because it integrates so well with our other daily tools right inside those channels, it acts as a centralized hub that outperforms any other software I've used. The web version is reasonably fast but the honestly the software experience is way better to use. The pricing is also quite generous especially for any company just starting off. Although I feel that the onboarding process could be improved for introducing users with features that new users are normally not familiar with or might have a hard time figuring out. I like the way it summarises long text automatically or updates after a long time of log off. Review collected by and hosted on G2.com.

If not managed strictly, the sheer volume of notifications and active channels can become overwhelming and disrupt deep work. It sometimes creates an 'always-on' expectation where you feel pressured to reply immediately. In highly active channels, important information or decisions can easily get buried in the chat history. While the search function exists, finding a specific message or file from weeks ago can sometimes be a tedious process. The desktop application can be quite resource-heavy. If I have multiple workspaces open at once, it tends to consume a significant amount of memory (RAM), which can occasionally slow down my computer. While the free version is great, the per-user pricing model for the paid tiers can get expensive very quickly as an organization grows, especially for smaller businesses or startups trying to scale. Review collected by and hosted on G2.com.

What I like best about Slack is how effectively it bridges both professional collaboration and quick personal communication within teams. Beyond just messaging, it acts as a centralized workspace where workflows, notifications, integrations, and project coordination all come together seamlessly. As a professional, features like automated reminders for EOD status updates, call and deployment notifications, channel-wide announcements, and integrations with tools like Jira, GitHub, and Google Workspace significantly improve productivity and accountability. It reduces context switching, keeps communication transparent, and enables faster decision-making across teams. Slack also scales well across different work styles from quick async updates to structured cross-functional collaboration which makes it extremely valuable in fast-paced engineering and project environments. Review collected by and hosted on G2.com.

One thing I dislike about Slack is the level of administrative control and monitoring capabilities available through enterprise integrations and super admin permissions. While integrations with compliance and security platforms like Secureframe or Sprinto are useful for organizations, they can sometimes create an overly restrictive environment where employees lose access to important features, workflows, or flexibility needed for efficient collaboration. From a professional perspective, it can also feel intrusive knowing that workspace owners or top-level administrators may have visibility into communication history, activity patterns, and internal discussions. This reduces the sense of privacy and trust that employees expect in day to day communication tools. Additionally, excessive governance and notification-heavy workflows can make Slack feel more like a monitoring system than a collaborative workspace, especially in highly regulated organizations. Review collected by and hosted on G2.com.

The UI is very good, and users’ personal details are not exposed. It’s easy to tag users, and I can create personal, project-based groups with selected users, like Discord servers, which is very helpful. The Huddle feature is also useful because I don’t need to create separate meeting links to talk to my team members in the company for any personal doubt or project-related query. The summarise chat feature is very useful as well, and I also like the status feature for when I’m away. Overall, my experience with Slack has been excellent. Review collected by and hosted on G2.com.

The Huddle feature, especially the screen-sharing option, could be improved. Review collected by and hosted on G2.com.

The best features about slack is definitely huddle, it is buggy at times but when it does work, it works really well. screen sharing, canvas, huddle chat is all great. different channel for different concerns is also great.

the activity tab is also good, lets me find exactly where the DM reply is or whats happening where. Review collected by and hosted on G2.com.

again, the number one disappointment is the fact that huddle is so glitchy especially on mac at times that we end up using google meet just to have a reliable connection and screen share.

beyond that i would there need to be better in chat stuff like polling UI, interactive stuff where we can get input from the entire team. better youtube video integration would be great too, currently it just opens a very small yt video that is hard to navigate Review collected by and hosted on G2.com.

Honestly, what I like the most is how easy it is to use: the platform is really intuitive. I find it very useful to have a separate channel for each client or for each area of the company. I also highly value the ability to make calls directly within that channel; I love that part. Additionally, the option to pin messages is very practical. Overall, it is very easy to use and works very quickly, both in the web version and the mobile version. The free option is fine, but the paid version offers many tools that I consider essential for any business. Lastly, the customer support has seemed very efficient and helpful to me. The AI is easy to use and helps you a lot with daily tasks. In my case, I integrated Slack with different tools like Trello, so Trello updates came to me as messages in Slack, very practical. Review collected by and hosted on G2.com.

There isn't anything specific that I dislike, but I would like it to have a calendar. It would be ideal. Review collected by and hosted on G2.com.

I really like using Slack for staying in touch with colleagues and sharing files. As a Senior Technical Writer I need to maintain close ties for documentation reviews across engineering, Product oweners and managers, and support teams. We rely heavily on channels and huddles, and are considering exploring integrations with Jira, Aha and DevOps… It's quite useful for setting up spin-off meetings and huddles, like breakout rooms, after our weekly meetings and stand-ups. It really serves as a collaboration hub within the organization, bridging the gap because many of us work remotely or in a hybrid model, not being in the office together all the time. Slack also offers DMs for one-on-one chats or meetings about work, and it's a great platform for collaboration and working with colleagues. I enjoy the AI agent built into Slack from Slackbot; it's got this really funny animation whenever you hover over it, which always makes me laugh. It's quite useful for scheduling meetings, setting up times when I'm free and when my colleagues are free, which helps with planning out meetings and takes a bit of the load off. I appreciate that it automates mundane tasks, saving us time and leaving more room for important work. I also find the different channels you can set up in Slack to be intuitive and quick to use, making it easy to set up a channel for specific things without cluttering the feeds of other stakeholders. It's a private space for our team, great for sharing photos and documents. Overall, the setup was very easy and straightforward, quite intuitive, despite a slightly different naming convention and layout from what we're familiar with in Teams. It wasn't an issue for us at all. Onboarding was relatively straightforward with an intuitive UI broadly similar to Teams - there are some videos online too. The day to day reliability of the platform has been good and it can be used in browser, which I prefer, or a mobile app too. Review collected by and hosted on G2.com.

I think there's a bit of an issue with the licensing model. From what I can see on my account, the standard settings mean that after three months or after ninety days, unless you've got the pro version, you lose, for example, the chat history, and there's just a few limitations that you would expect to just be standard. So competitor tools, like Teams, for example, just include that functionality that you're having to upgrade. It's just a little bit disappointing, but I think this is justified for a business. Once it's adopted, for me, it's worth paying extra maybe for those features, but you'd expect them to just be standard. Really as part of the package. Because without that, it's pretty basic functionality. Notification management can become overwhelming in large organizations like NiCE, and older message history can sometimes be difficult to locate unless channels are well organized. I learned that the hard way, and routinely star important threads. Pricing can easily become expensive when scaled. Review collected by and hosted on G2.com.

I like how Slack keeps everything in one place without the email back-and-forth. Channels let me split conversations by project or team, so I can mute what I don’t need and jump into what matters. The integrations are the real win — I can get GitHub alerts, Jira updates, test reports, and calendar sync right in the channel. With Google Calendar or Outlook connected, meeting reminders, interview schedules, and event updates pop up directly in Slack, so I never have to switch apps. Search is fast too, so I can pull up old decisions or files in seconds. For QA work, that means fewer missed updates, quicker coordination with devs and product, and my meetings are always visible where I’m already working. It just makes team communication feel lighter and more real-time. Review collected by and hosted on G2.com.

The biggest thing for me is notification overload. If you’re in multiple channels with integrations firing constantly — GitHub, Jira, calendar sync — it gets noisy fast. Even with custom alerts, it’s easy to miss important messages in the flood. I also find that long threads can get messy. Once a conversation splits off, it’s hard to follow context unless everyone replies in the thread, and not everyone does that. And on mobile, it can feel a bit heavy. It’s fine for quick replies, but searching old files or scrolling through busy channels isn’t as smooth as desktop. Overall it’s still my go-to for team comms, but I end up spending time tuning notifications so Slack stays useful instead of distracting. Review collected by and hosted on G2.com.

What I like most about Slack is how much it simplifies day-to-day communication with my team. Rather than sending a bunch of emails back and forth, we can message each other directly or use channels dedicated to specific projects and topics. It’s also really useful for sharing files and links, posting quick updates, and asking simple questions that don’t really need a meeting. Review collected by and hosted on G2.com.

My main issue with Slack is how quickly it can get noisy. When there are too many channels and notifications, it’s easy to miss important messages or lose track of ongoing conversations. I sometimes end up scrolling through a long stream of updates just to find the one thing I actually need.

The mobile app also isn’t always as straightforward as the desktop version, especially when I’m switching between channels or trying to track down older messages. Overall, Slack is helpful and generally easy to use, but it can become distracting when the workspace isn’t organized well. Review collected by and hosted on G2.com.

different channels make it easy to organize conversations for those involved in a certain project.

pretty easy to use and navigate Review collected by and hosted on G2.com.

Hard to DM people, I wish it was easier to search for convos or for a DM. It's not intuitive to click the "..." and then the "start DM" button, I wish there was a short cut to just easily search the person you want to message individually.

Also wish notifications were more customizable, I get sooo many notifications on slack Review collected by and hosted on G2.com.