I really like how Customer.io's UX has improved in workability and appeal, making the experience seamless. The increase in connectors helps us have a more integrated tech stack, which is great. The comprehensive AI roadmap is something that truly excites me and the CRM team. The ability to configure a workflow in minutes and streamline the process with the new AI agent, which aids in pulling data and automating segment construction for more customized notifications, is really beneficial. Additionally, the initial setup was beyond easy for us. Review collected by and hosted on G2.com.

I think their analytics section could be stronger. I would like to have monitoring capabilities to track anomalies and volume changes. Review collected by and hosted on G2.com.

The best thing is The best thing about customer.io is its dynamic workflow capabilities, support for multiple channels, and extensive data warehouse integration.

The icing on the cake is its new AI feature, which provides an assistant for answering questions, creating campaigns, and more. Review collected by and hosted on G2.com.

Two suggestions. First, please improve the Design Studio by adding more pre-made column styles, such as a mural style, newspaper-style columns, and similar options. Second, beyond the campaign delivery report, it would be very helpful to also generate a more executive-style summary report that highlights practical, actionable insights. Review collected by and hosted on G2.com.

What I like best about Customer.io is how flexible and easy it is to create personalized customer journeys. The automation features are powerful, and the interface makes it simple to manage campaigns across email, push, and in-app messaging without feeling overwhelming. Review collected by and hosted on G2.com.

Api response is sometimes slow,Initial setup and event tracking configuration can be time-consuming Review collected by and hosted on G2.com.

I love the incredibly well-designed campaign structure and flow creation of Customer.io, which is the best in the market. I find it valuable that I can create flows that change according to user behavior, like clicks, opens, and other data. This customization in the email body according to actions significantly boosts clicks and opens by 20% to 50% over the normal rate. Review collected by and hosted on G2.com.

The only thing is that there is a slight learning curve, and the new pricing is ridiculous. Earlier under my previous company we were under a VC programme for which the pricing was very VFM. The initial setup was slightly difficult. Lots of settings and infrastructure were needed. Review collected by and hosted on G2.com.

I really like the automation for my user acquisition. The UI is straightforward, and it helped me convert users into paying customers for my Early Access. Managing transactional emails is also easy here, especially with the Design Studio.

Email delivery has been solid as well. Review collected by and hosted on G2.com.

I wish that sending transactional emails to users who aren’t yet in Customer.io (as a Person) didn’t automatically create a new Person.

In my app, I have a feature where tutors can invite new users, but those recipients may not have joined the app yet. Customer.io still creates a Person record for them, and those end up being billable. Review collected by and hosted on G2.com.

Customer.io definitely has all the tools needed to build and send robust email automation. I’ve used a few other platforms in the past, and this one surpasses most of them in terms of functionality. Review collected by and hosted on G2.com.

Personally it is a very steep learning curve. Could be user error but as I said I have seen these in tech stacks in the past. Review collected by and hosted on G2.com.

- campaigns: can copy selected parts of 1 campaign to another

- segment: audience preview is very fast

- template: preview feature with audience profiles

- analytics general display

- ai assistant Review collected by and hosted on G2.com.

- sometimes the UI takes a long time to load

- the ai assistant can be improved, for example i had 11 campaigns starting with "NL" and i asked it to make a report about those and only find 3 campaigns

- analytics: the only view for the chart is a line graph without labels, would be good to have a bar graph option too

- message limits: only 1 per workspace is too limited

- time window for campaigns can only be minimum 1 hour, this is too limited in my opinion Review collected by and hosted on G2.com.

I like Customer.io's ease of use; the learning curve was manageable for me when switching over, and it allows me to manage the platform efficiently and train others. The AI analysis feature is valuable as I use it to improve my newsletter copies before sending them out. I appreciate how easy it is to start a new newsletter from a pre-existing one using their templates. The metrics provide clear insights after sending newsletters or setting up drip campaigns. Review collected by and hosted on G2.com.

I wish Customer.io would auto-save each newsletter so I don't have to remember to save. Also, it would be great if Customer.io could auto-suggest and build segments. Review collected by and hosted on G2.com.

I appreciate Customer.io's constant new features and releases, which assure me it will be ahead of the curve. I also love the live webinars and sessions held by the team, which elevate the community. The ease of use in creating campaigns stands out to me, and the AI assistant has saved me time on manual tasks. It's an out-of-the-box solution that allows us to target users with accuracy and has a minimal learning curve to be efficient. Review collected by and hosted on G2.com.

I think the navigation around the design studio could use some work - as we're dealing with hundreds of emails, being able to toggle between them in a friendlier way would save time. Review collected by and hosted on G2.com.

It lets me personalize emails based on users’ behavior and demographics. I can also create custom segments and tailored sections for users who meet specific conditions, such as showing an upsell section to free users. Overall, the email flow-building interface is intuitive. Review collected by and hosted on G2.com.

It’s definitely not a user-friendly email platform. When I first started using it, there were a lot of things I didn’t understand, especially around attributes and personalization.

Plus, I wish it came with more templates and pre-designed blocks to make building emails easier.

Also, it would be better if it came with some features to help us avoid email bounces.

Additionally, the AI sometimes gives incorrect instructions on how to optimize my email copy. Review collected by and hosted on G2.com.