2 years later
This is a good toothbrush and you won't have to buy replacements for the 6-10 months. While brushing, it works best to progress slowly from tooth to tooth without trying to brush back and forth or in circles. It definitely does better than regular brushing but my checkups are not better than before I started using the brush. The back teeth and the gumline seemed to be missed more but the main surfaces feel smoother. After 2 years, the battery is not holding charge well anymore and the charge indicator LED lights only dimly. Overall, I would say it is worth it but I want to see if there is something better. I am going to buy a Sonicare.