I bought the Sonicare on the recommendation of my dentist. Not that she said I *had* to have, just that if I was going to get one that the Sonicare was the better of the brands out there. Something about the rotation being better than the Oral B, yet they thought the Oral B was good for kids??? Who knows. Anyway, I really like it. My teeth have the "just from the dentist" kind of smoothness that I never got with a manual toothbrush. The other plus is that the teeth in the back (which are really way far back in my mouth) are getting a much better cleaning. With a manual toothbrush it was hard for me to get the brush head way back there AND articulate well. Now I just stick it back there and the brush does all the work.