Review (4/5): Great Product...heads only, not the brush.
The heads are fine, but following is my review of the brush itself:
It was a good brush while it worked, but entirely too expensive. I understand it's important to take care of our teeth, but this brush lasted 2 1/2 yrs. and cost about $400. (original unit, plus replacement heads). I'm now looking at powered brushes for under $20. that can be tossed when they eventually fail. I figure at that price I can get 20+ yrs. out of them for $400.