I have to admit, I am one of those people that thinks brushing your teeth is a chore, and as such a manual toothbrush is just too much effort for me. This requires very little effort on your part as the vibrations of the toothbrush do all the work. The vibrations are wonderfully strong - you really feel like you have clean teeth when your finished. The toothbrush is rechargable, and can be plugged into the mains, or the shaver adapter in the bathroom. I tend to charge mine every night, but this is because I like it powerful. My sister can go 3 or 4 days without charging hers, and its still pretty powerful. You can also change the head, which means that the body of the toothbrush can last you years, with a change of the head every 3 months or so. They also look quite good in your bathroom.