Incredibly easy to configure and test, loving it so far. Implementation is simple and ready to start debugging and testing within an hour. I will use this frequently and lots of features available! Review collected by and hosted on G2.com.

Nothing thus far! Everything has been seamless to date. Review collected by and hosted on G2.com.

So far the configuration and setup is flowing well. I can understand scripts are prompts and having an Agent refer to a knowledge base is very helpful. I'm most likely going to purchase at least a month's plan to try the system out but it would have been nice to have test minutes to listen to how the agent handled calls. Good test center though in helping me add to my knowledge base or prompts for handling calls. Review collected by and hosted on G2.com.

They didn't seem to give me any free minutes to try the software. I also needed to purchase a phone number in order to Test my Agent but then when I went to test what the Agent sounded like or how they handled calls, I needed minutes. It's not real clear on how to purchase even a few minutes without upgrading to a full-service plan. Review collected by and hosted on G2.com.

I really like how easy Synthflow is to use. The setup takes almost no time, and the AI voices sound surprisingly real — not robotic at all. It’s been great for handling quick customer calls and confirmations without me having to jump on the phone every time. The platform feels reliable and simple, which makes it easy to trust for everyday use. Review collected by and hosted on G2.com.

not much if i am being honest. i think just the pricing for me which is not so bad for the services Review collected by and hosted on G2.com.

Synthflow is an excellent platform for building AI voice agents. The setup process is intuitive and straightforward, making it easy to deploy conversational AI solutions quickly. The voice quality is remarkably natural, and the platform offers great flexibility in customizing agent behavior. The integration options are robust, and the overall performance is outstanding. Review collected by and hosted on G2.com.

There is very little to dislike about Synthflow. If I had to mention something, it would be that the documentation could be slightly more detailed for advanced use cases, but the support team is always helpful and responsive when needed. Review collected by and hosted on G2.com.

SynthFlow makes it incredibly fast to prototype realistic AI call agents. I love that you can design conversational logic, set variables, and connect APIs without any code. The interface feels intuitive, the testing flow is smooth, and the response accuracy has been better than I expected. It’s perfect for quick POCs or production-grade automation once you get familiar with the structure. Review collected by and hosted on G2.com.

The documentation is helpful but sometimes skips advanced examples, especially for integrating mid-call API requests or webhooks. A few more built-in templates for healthcare or logistics scenarios would make setup even faster. Still, support is responsive, and updates seem to come quickly. Review collected by and hosted on G2.com.

The visual Flow Designer combined with Variable Extraction is a game changer for building professional agents. I moved from other platforms where I had to rely heavily on prompt engineering to control the bot's behavior. With Synthflow, I can use Boolean variables and Branch Nodes to create deterministic paths (e.g., separating 'Qualified' vs. 'Unqualified' leads instantly). I also love the 'After the Call' action feature—it allows me to extract complex data (like shipment dimensions and weights) from the transcript automatically without needing to trigger fragile tools during the live conversation. Review collected by and hosted on G2.com.

The learning curve for managing Actions can be a bit tricky at first. It wasn't immediately obvious that I had to 'toggle on' an action in the Agent Settings tab before it would appear in the Flow Designer dropdown. Also, some of the error messages in the builder checklist (like 'Failed to parse FSM') are a bit too technical and don't clearly explain that a conversation loop simply needs an exit condition. A more user-friendly tooltip there would be helpful. Review collected by and hosted on G2.com.

I love that they make it very simple to create your AI assistant. It's one of those things where people tell you "easy to learn, hard to master." Getting in is pretty self explanatory, it only took me a YouTube video to get started. However getting into the nitty gritty involved a little more digging around and exploring. Review collected by and hosted on G2.com.

It's a quality of life change more than anything, the icons on the left side of the screen. Starting out I forget what any of those icons mean so I wish there was a way for it to be labeled. However you only get to see it sometimes, not sure why but it's more of a UX issue. Review collected by and hosted on G2.com.

Synthflow makes it easy to set up AI voice agents for inbound and outbound calls without any coding. The prompt builder is straightforward and the interface is clean and easy to navigate for agencies managing multiple clients. Review collected by and hosted on G2.com.

The trial minutes are very limited so it's hard to fully test before committing to a paid plan. Pricing could be more flexible for smaller agencies just getting started. Review collected by and hosted on G2.com.

Absolutely amazing. I would recommend it to anyone that is looking for AI agents. Review collected by and hosted on G2.com.

I would say the startup is kind of confusing, but with a little bit of help, it's very easy. Review collected by and hosted on G2.com.

They provide hastle free service with no technical knowledge needed Review collected by and hosted on G2.com.

The free testing trial is very short they should make it for atleast 3 days Review collected by and hosted on G2.com.