I mean it's amazing. AMAZING. I'm not the sort of person who can generally just sit there and take it and get off, but DAMNED if I can't with this. I thought I knew what over-stimulation felt like, but DAMN is it a trip to finish with the suction on full blast and curl up into yourself with the force of it. Generally recommend the mid settings for actually getting off... but the way your whole dang body jolts and jitters when you hit the right spot with the suction threw me for the biggest loop the first time I tried one of these. Oof, I can't imagine what a strap on and leave in place version of this might be able to do, so that you could free up your hands for other sort's of play. I guess that's technically a negative, that it's rather hard to position and keep in place if you're messing about with anything on top of the satisfyer, but it's hard to be mad. Lol. Another tiny negative is that the buttons can be a bit hard to find and tell apart in the middle of things. It'd be cool if the next Satisfyer improved that a bit. Both the buttons standing out a bit more, and maaaaybe a way to make it a little more one handed friendly/ less fumble-able/prone to turning in your hand if you're not giving it 110% attention.