I technically did last thursday. It didn't feel anywhere as good as I always imagined it would though that could be because I've desensitized my dick from almost 15 years of constant masturbation
I've been using my for about 5 months and I still feel discomfort. At some point I have to go back so they can help find a better solution. If I could go back in time, I probably wouldn't have bothered because it wasn't worth the money to me.