I've tried several, but still consider myself a beginner. I started with the Aneros MGX and found it terribly uncomfortable. The Helix Syn is way more comfortable, but it does seem to be very much a tease. I think that its because my muscles aren't strong enough yet, so its not able to give me a good massage. /shrug
The P-rock massager was great, i stated to ejaculate immediately after it got in, but its not very easy to get it in and make it stay
My current favorite (and also on the fritz
) is the Nexus G-play. The size is a little too big, but when i relax enough, the feeling of fullness and the base against my perineum is quite yummy. There's a lot more i've tried, but its hard to know where its my inexperience or the toy's design.