What I value most about Slack is the centralization of communication in one place. The organization by channels and the use of threads keep discussions organized without cluttering the main flow, which makes a big difference in day-to-day service.

The interface is intuitive and fluid, with a low learning curve — within a few days I was already using the main features without formal training. The integration with other tools in the stack, like Google Workspace, works well and avoids constant switching between platforms.

The internal search was an unexpected benefit: retrieving messages and files from months ago is simple and fast. AI features, like channel summaries, also help keep up with conversations without having to scroll through hours of history.

Overall, Slack delivers a good return: it saves time, organizes communication, and increases team productivity. Review collected by and hosted on G2.com.

One of the main areas for improvement is the system's resource consumption. Slack can become heavy with many channels and workspaces open simultaneously, which impacts the computer's performance, especially on machines with more modest configurations.

Notification management, although configurable, can still be smarter. On days with a high volume of messages, it's easy to get lost or end up muting important channels due to overload — a more refined prioritization system would help a lot.

Advanced search also has room to evolve. More precise filters by date, file type, or sender would make information retrieval even more efficient.

Finally, the message history limit on free plans is quite restrictive and can be frustrating for teams that rely on access to history for consultations and audits. Review collected by and hosted on G2.com.

I've been using Slack for communication, and it's become one of my favorite productivity apps. The interface is clean, and conversations are well organized, which makes it easy to keep work and personal projects separate. I like how quickly I can share files, search old messages, and join voice or video calls when needed. Notifications are reliable without feeling overwhelming, and the app runs smoothly on my phone. It helps me stay connected with teams and communities no matter where I am. Overall, Slack is a dependable, user-friendly app that makes collaboration simple, efficient, and enjoyable every day. The initial setup was very easy. Review collected by and hosted on G2.com.

Sometimes glitches but it’s okay I like its Review collected by and hosted on G2.com.

its organized, channel-based communication, powerful search, and seamless integrations with other tools, which streamline workflows and reduce email, making it great for transparent team collaboration, especially for remote or distributed teams needing quick access to information. Key features include easy file sharing, customizable notifications, and quick voice/video huddles, all within a user-friendly interface that supports efficient, focused work. Review collected by and hosted on G2.com.

I think its potential to cause information overload and constant interruptions, leading to fragmented conversations, difficulty tracking important messages (especially in threads or with poor search). Other common complaints include a confusing UI, notification issues, security concerns with sensitive data. Review collected by and hosted on G2.com.

Slack is a great community tool, and we use it daily for work. We can create Canvas pages to store all the necessary information, and we can set up channels as either public or private, which makes it easy to connect with the team through a secure medium. As an integration architect, another great part for me is the API portal and webhooks, which help integrate with tools like MuleSoft. And now we also have Agentforce for Slack, which can send messages or create and update Canvas, which I find very interesting. Review collected by and hosted on G2.com.

When I connect it with other apps, it sends a lot of notifications. If those could be reduced, it would be very helpful. Review collected by and hosted on G2.com.

The best things about Slack are its instant messaging, video conferencing, audio conferencing, screen sharing, and presentations. The AI features in Slack help users quickly rephrase and summarise messages, support meeting-notes transcription, provide smart notifications, and offer AI-based messaging assistance.

However, Slack’s performance has reduced lately, even though quick chats are still easy to access and it’s possible to store a large number of chats without much delay when retrieving information. The UI is quite easy to understand and effective, making it simple to find everything in one place.

The newer integrations with Jira, Claude, and Google Calendar are also very useful. For business use, Slack’s pricing feels effective and is a good option to get started with. Review collected by and hosted on G2.com.

When there are a large number of messages, I’d like to be able to prioritize the ones I’ve received and then open them based on that priority. This improvement suggestion would be very useful if it were implemented. Review collected by and hosted on G2.com.

What I like most about Slack is its intuitive interface and strong real-time communication. It makes team collaboration straightforward with well-organized channels, direct messages, and seamless file sharing. I also appreciate the wide range of integrations with productivity and project management tools, which helps keep workflows centralized. Features such as searchable message history, customizable notifications, and huddles further improve communication and support overall team productivity. Review collected by and hosted on G2.com.

Slack can feel overwhelming when there are too many active channels and constant notifications, and it becomes easy to miss important messages. The search feature is helpful overall, but in larger workspaces it can still be hard to quickly track down older conversations. Also, some of the more advanced features are restricted in the free version, and managing notification settings across multiple channels could be more intuitive and easier to control. Review collected by and hosted on G2.com.

Real-time, low-friction communication — much faster than email for day-to-day back-and-forth, with threads keeping conversations organized without inbox clutter.

Channels for organizing by topic/team/project — easy to separate signal from noise, join only what's relevant, and search history later.

Search — genuinely good at surfacing old messages, files, and links, which becomes more valuable the longer a team has used it.

Integrations/App ecosystem — huge range of bots and tools (calendars, CI/CD alerts, project trackers, etc.) that plug into channels, so Slack becomes a hub rather than just a chat app.

Huddles/quick calls — lightweight audio/video for spontaneous conversations without needing to schedule a full meeting.

Custom emoji/reactions and culture-building — small thing, but often cited as genuinely helping remote/hybrid teams feel more connected. Review collected by and hosted on G2.com.

Notification overload / always-on pressure — the real-time nature that makes it useful also creates an expectation of constant availability, which many people find exhausting or hard to disconnect from.

Message/channel sprawl — as teams grow, channels multiply fast, and important information gets buried or duplicated across threads and DMs.

Search isn't as good as it should be — despite being one of Slack's selling points, many users find that finding something from months ago (especially in a large workspace) can be hit or miss.

History limits on lower-tier plans — free/cheaper plans cap how far back you can search or view messages, which is a common pain point for smaller teams or those trying to save costs.

Threads can be clunky — replies in threads are easy to miss if you're not specifically watching that thread, so important context sometimes doesn't reach everyone who needs it.

Can become a substitute for documentation — decisions and knowledge end up "living" in Slack messages instead of a proper wiki/doc, making it hard to onboard new people or find canonical answers later.

App/integration clutter — a workspace with too many bots and integrations posting updates can end up as noisy as the email it was meant to replace. Review collected by and hosted on G2.com.

It's been one of those one platform that I got accustomed to pretty quick and now I cannot think using any other alternative even in my next org or agency. Review collected by and hosted on G2.com.

Everything I have disliked usually has a solution within Slack - for example, focus mode, VIP list, turning off unnecessary notification etc. Review collected by and hosted on G2.com.

What I like best about Slack is its ease of access and user-friendly interface. It can be used seamlessly on both desktop and mobile devices, making it easy to stay connected and respond to messages wherever I am. Similar to Discord, it offers organized channels, real-time communication, and engaging features that encourage collaboration and help teams stay connected and productive. Review collected by and hosted on G2.com.

Slack generally performs well and makes communication quick and convenient, but there are occasional instances where the platform lags or experiences delays. I also encountered an issue where I was unexpectedly logged out and unable to access my account, which temporarily disrupted my workflow.

When I experienced login issues, the support process relied on assistance from our administrator to restore access. While the issue was eventually resolved, having more self-service troubleshooting options could make the experience smoother for users facing similar problems. Review collected by and hosted on G2.com.

I like that Slack works on both mobile and laptop, which is super convenient. The communication is really easy, and I enjoy customizing the channels. It's great for having multiple departments in the same software, and it's really good for remote setups. The flexibility of Slack was a big plus since we switched from Microsoft Teams. The initial setup as a user was quite easy because I just had to download a mobile app or install it, and they have their own app so you can run it natively on your device. Review collected by and hosted on G2.com.

The things which don't work good for me on Slack is that sometimes it doesn't give proper notifications. Also, it's really hard to organize all the things at once. Review collected by and hosted on G2.com.