This toothbrush was a promo at my last dentist apopintment, and a great promo it was! Upon first use I was quite satisfied with the speed of the toothbrush, and the power that is in this little toothbrush.
It may be the fact that it plugs into the wall to charge, rather than a battery that is inserted into the bottom. The only downside to this is the fact that I like to conserve energy and do not like to leave this plugged into the wall for any leangth of time.
The appearance of the brush is the only thing that could be improved upon, although the shape does make it quite easy to hold onto while you are brushing.
There is also a handy timer that vibrates your hand when the two minutes that you are supposed to be brushing is up. This is great, because I can never seem to brush long enough. This is a great brush, and the battery life is superior to any other power toothbrush that I have had experience with.