I'm relatively new to anal, so I was a bit intimidated by the length once I got them. Turns out, that worry was completely unfounded between the incredibly smooth silicone and the a good bit of lube, getting them in solo was a breeze. What's more, they have a couple settings that made it really hard to even think. They fit very comfortably and are relatively quiet. If you're worried about just how waterproof they are, 45 minutes in the shower didn't hurt them. The vibrator being in the tip is really an inspired choice. If I had any complaints, they'd be about having to charge it pretty much every time you use it, but maybe that's for the best it might be truly addictive if it could run whenever you want.