No, but I read some Reddit posts about it and they were positive. I believe if you look deep into the core of the stuttering it will have an effect. I've read that hypnosis has cured people of Agoraphobia etc... I've planned to do it before but Mum was scared of it but I believe I can achieve it. My stuttering is from fear, anxiety (I guess) so improvement might be possible. But again, I don't know much about it yet so I don't recommend it to anyone