Is both an acceptable answer?  :cheesy2:

I've never used one and the fear of bursting a vessel freaks me out. There are water pumps out there that are marketed as less intense that I would consider trying. However, for 200 bucks, I'll pass.

The most people I've had sex with was with 2 other people. It was actually pretty fun. Would definitely do it again

Absolutely. It's fantastic.