After much research on vibrators, I decided to buy this model because it is of a size and a reasonable price (not too small, not too large) for a first purchase. We did not use with my wife because I intend to surprise him (while doubting my purchase). For info I also took the "Fifty Shades of Grey" to spice up our evenings. At its operation, the switching and selection of modes of vibration are very easy to use. The shape and the feel are pleasant. I'll leave other comments when we have used ...