In the interest of, ahem, science, I've been expanding my collection of various toys and thought that this might be a good addition. I'd never used anything with automated thrusting, and honestly wasn't expecting too terribly much. Let's just say I'm delighted to be wrong! The vibration is solid, and the various thrusting modes are much more interesting than I thought they would be when I was just switching through them after the toy was charged. One of the best things I discovered, though, was that while the thrusting was plenty strong/deep, if you pushed too hard into the back of the toy, it would actually slow or stop the motor. This has probably saved some unfortunately placed bruises.Anyway, if you're on the fence about this type of toy, give it a shot!