good
i have never used a power tooth brush before, so i have no basis of comparison, but i think it's quite good.<br />some people said it takes a while to get used to, but that's not the case with me...<br />it comes with one brush head, and there are several alternative styles to choose from when you buy more...<br />i noticed my teeth become just a little bit whiter every time i brush.<br />when the battery starts to drain out, it gets weaker, so you know when to recharge.
Rating: 5 stars