If you want really clean teeth; look no further and buy this brush. I previously had an Oral B Professional Care 2000, but it broke after 2 years. Although the Oral B was good, it is not comparable to the Phillips Sonicare.
The toothbrush head shape is much more effective for cleaning; my teeth look and feel so clean after use, it is like having been to the hygienist. I have only had the brush a week and already I notice the battery life improvement. I have not charged it since it was purchased and I still have 'two bars' of power left.