The interface is pretty clean and easy to use. But some of the voice recognition doesn't work for unknown reasons, and this is what a french buddy of mine trying it out as well.
Response from Rocket Languages
Thanks for the feedback! I'm sorry to hear that you're having trouble with our voice recognition. The software can have some difficulty picking up on particular short sounds unique to the French language. But don't worry; we're here to help! Just give us a shout, and we'd be happy to set up a call to assist you in getting the best possible results with the voice recognition. Happy learning!