I was replacing my original sonicare and it doesn't work as well. The brush head seems very week so I don't feel that my brushing is as efficient as it should be.
I absolutely love this toothbrush. it is easy to use and makes my teeth feel like I have been to the dentist for a cleaning. It took me a while to get used to it, but I cannot imagine using anything else. nice design and a great charger.
Unfortunately I am not at all impressed with this product. The vibration is far too intense, and in my opinion will do the teeth and gums more harm than good. I'm sticking with manual brushes where "I" can control the intensity of the brushing action.