First off, this is a fantastic entry product. I had gotten Aneros as my first toy, and this was my second, as it really got me curious as to how it'd feel if I kept going. No pun intended, but here goes..
Rubbery feel is definitely there for the bead and the plug. Bullet holder can be used as a handle for manual play, so that's really handy. However, bullet can slip out easily - whether it might be too much lube or too strong of a vibration, I couldn't really tell, but I'm inclined to say it's little bit of both.
The sensation is rather strong - in a pressuring way. It seems rather well built internally, and shouldn't break even if you go a little rough on them. A concern of mine, however, is that the wire that connects the bullet and the controller seems mighty thin. With prolonged use, problems might arise there - but I wouldn't recommend these set of toys for prolonged toys, oh no. They're strictly starter toys, for you to realize whether you're cut out for anal stimulation or not. To that effect, these toys will let you know within hours, if not in mere minutes.