Review (5/5): Best brush I've had.
Short version: I have crooked teeth. This brush got out coffee stains that normally required a visit to the dentist.
Longer: Dentists have been recommending Sonicare brushes to me for the last 20 years. The first one I bought, rechargeable, died after a year. So I decided it was too expensive a technology. Then about three years ago, with my dentist harassing me again to use a Sonicare, I found this brush. At the price, it was reasonable even if it only lasted a year, and I didn't have to worry about the charging unit dying.
I've seen the reviews complaining about water leaking in. I think that will depend on usage. I've been using the brush daily for three and a half years, and it only just died. Yes, there was some leakage, but I took care to keep water away from the base. I also used rechargeable batteries, as I find battery failure the biggest problem with rechargeable devices.
I've gone back to a rotary powered brush until I get my new Sonicare, and I miss the Sonicare.