It’s fairly straightforward to build an autonomous AI phone-call agent, including real-time function calling and call transfers. I’m also impressed by the flow-building UX; it feels polished and easy to work with, especially thanks to features like batch calling and integrations with Twilio and Telnyx. Review collected by and hosted on G2.com.

So far, I haven’t disliked anything about it. It has great features, and for me it’s been working well. Review collected by and hosted on G2.com.

What I like most about Retell AI is its ability to create natural, human-like voice conversations while still being highly customizable and developer-friendly. The platform makes it easy to build, deploy, and scale AI voice agents, and its real-time responsiveness and integrations make it practical for real-world business applications. Review collected by and hosted on G2.com.

What I dislike most about Retell AI is that, like many voice AI platforms, it can take some time to fine-tune for very specific use cases. Depending on the workflow, there can be a learning curve around prompt design, call logic, and optimizing conversation flows to make interactions feel truly seamless. Review collected by and hosted on G2.com.

Retell AI makes it incredibly easy to build and deploy AI voice agents with natural-sounding conversations. The platform is intuitive, reliable, and offers excellent call quality, low latency, and seamless integrations. It has significantly reduced development time while delivering a great customer experience. Review collected by and hosted on G2.com.

There is very little to dislike about Retell AI. If anything, some advanced features have a learning curve for new users, and additional documentation or tutorials for complex workflows would be helpful. Overall, the platform is powerful, stable, and continues to improve with regular updates. Review collected by and hosted on G2.com.

What I like best about Retell AI is how fast and flexible it is for building real-time voice AI agents. The call quality, latency, and conversational flow are impressive compared to many other platforms I tested. I also like how easy it is to integrate with automation tools like n8n, GoHighLevel, and OpenAI to create appointment booking and customer support systems. Review collected by and hosted on G2.com.

One thing I dislike is that advanced workflows and prompt tuning can still require a lot of testing and experimentation, especially for production-ready voice agents. The pricing can also become expensive when scaling or doing many test calls during development. More beginner-friendly templates and debugging tools would also help new users. Review collected by and hosted on G2.com.

I like it because it works very well, it is stable and allows for the creation of AI voice assistants that are truly usable in a professional setting. The quality of the conversation is very good, response times are quick, and the platform offers good flexibility in configuring agents, instructions, and call flows. For those working with phone automations, lead generation, customer care, or contact prequalification, Retell AI represents a very interesting and already practically operational tool. Review collected by and hosted on G2.com.

For the Italian market, it still has some limitations, especially in the complete management of numbering, payment methods, and local integrations. Some configurations require a non-trivial technical level, and the documentation, while useful, could be clearer for those who are not developers. Support for alternative payments to credit cards would also be important, especially for European companies that use bank transfers, PayPal, or more widely used local payment systems. Overall, the product is valid, but it would need more localization to be truly immediate for the Italian market as well. Review collected by and hosted on G2.com.

Retell AI is easy to use, highly customizable, and makes it simple to build realistic AI voice agents for lead qualification, customer support, and appointment booking. Review collected by and hosted on G2.com.

The main downside is the learning curve for advanced workflows and the time required to thoroughly test conversation flows. As usage grows, costs can also add up, so careful optimization is important. Review collected by and hosted on G2.com.

The agent setup is genuinely fast — I had a working AI receptionist answering calls and collecting structured lead data within a day. The post-call analysis feature that automatically extracts caller name, phone, address, and issue from the transcript is the standout feature. Voice quality is natural enough that callers don't immediately recognize it as AI. Webhook integration with n8n works cleanly. Review collected by and hosted on G2.com.

KYC verification for Canadian phone numbers took over 48 hours and initially failed without a clear explanation. OAuth token expiry on connected Google credentials caused silent failures that required manual reconnection. Better documentation on these edge cases would save new users significant debugging time. Review collected by and hosted on G2.com.

After more than three years of working with voice AI, what I like most about Retell AI is its ability to quickly turn ideas into production-ready AI agents. The platform is flexible, reliable, and easy to customize, allowing us to build sophisticated inbound and outbound calling solutions without the complexity of managing every component ourselves.

The combination of natural conversations, strong integrations, detailed analytics, and rapid iteration makes Retell one of the best platforms available for scaling real-world voice AI applications. It has played a significant role in helping us deploy and manage thousands of AI-powered conversations across multiple industries. Review collected by and hosted on G2.com.

The main areas I'd like to see improved are enterprise-scale campaign management, deeper analytics, more advanced reporting, and stronger prompt/version management tools for large teams. As voice AI deployments grow, having greater visibility into performance, dispositions, conversions, and agent optimization becomes increasingly important.

I'd also like to see continued improvements in latency, interruption handling, and workflow automation. That said, these are enhancements rather than major concerns, and Retell AI remains one of the strongest voice AI platforms we've used. Review collected by and hosted on G2.com.

Already used other softwares but Retell ai feels more humanly , as it uses some sounds like "Ahh? hmm?" . Review collected by and hosted on G2.com.

Not quite dislike as its security based , but if its have a ph no. selection option like vapi does , it would be better . buts its ok. 🙌and 10$ credit is very less its all goes for just only testing , if i have a client who want a demo to show them as so that they inspire by it , and buy this service , as last i have one but my all credit gone just to test, so it should be some more . thats it what i dislike about it . otherwise its ok. Review collected by and hosted on G2.com.

This retail AI agent is fantastic! Integration was incredibly easy and quick, everything about it is straightforward and simple to understand. The voices are really nice and natural-sounding too—such a great tool, I’d highly recommend it Review collected by and hosted on G2.com.

The support staff are honestly one of the best things about working with this retail AI agent. Their response time is incredibly fast, every team member is polite and friendly, and they always take the time to properly understand exactly what our problem or query is. They put in 100% effort to resolve issues right away, and on the rare occasion that something isn’t within their scope to fix, they don’t leave us stuck — they suggest practical alternative solutions, and even give us references to other companies and providers where we can get the exact solution we need. That level of helpfulness and care is really rare to find, it makes everything so much easier Review collected by and hosted on G2.com.