I wouldn't use it to entirely replace your voice. This is good for YouTube videos, presentations and elevator pitches in job interviews things like that. Works for drive thru and restaurants too. However in day to day conversations, you should still try to speak with your own voice. If you're having a ton of blocks in the convo then yes, use the AI voice. But you at least have to try. If you end up totally abandoning your voice, your stutter is more likely to get worse and your vocal muscles will get weaker and thus blocks and tension in the face will be more frequent and increase. This is just my take but just like everything in life, if you don't use it, you lose it. If I were you I would incorporate reading out loud into your daily routine so that your at least using your voice even if you avoid conversions. You can do this exercise to improve your fluency: https://youtu.be/wAybuEe446E?feature=shared