This is the first toy I bought, and I'm still figuring out my way around it, but I love the six different rhythms and the ability to change the strength of vibrations on them. It fun to switch between the rhythms. This wide variety of settings allows for a lot of experimentation, and there's a lot to choose from to tailor a session to your individual likes. I usually don't get off on deep stimulation alone, so it took a while with this toy and the orgasm wasn't all that fantastic, but I enjoyed the experimentation and the variety of settings. It'll probably get a lot better as I learn my way around it.
Additionally, the material is very pleasant to the touch. I didn't have to use any lube, but that's probably individual. The batteries charged fast and didn't run out on me during the necessarily long first session, even though the device wasn't charging for that long beforehand. It's very quiet, too.
(For those interested, the rhythm settings are: 1. continuous vibration; 2. slow "thrusts"; 3. fast "thrusts"; 4. alternating between low and strong; 5. alternating between strong and almost none; 6. an erratic pattern of strong-stronger-strongest, out of any order or sequence, and the strongest made my eyes roll back, I just wish I could turn the device to that strength for all times. Within each rhythm, you can increase the strength of vibrations. Also, nothing actually thrusts anywhere, but the pattern of vibrations creates that sensation.)