Review title is Good brush but not worth since they stop working so easily [SEP] Well, to start out with. Electric tooth brushes are the way to go and no one does it better than Philips. Even this one which is their lowest cost one is very very good. The problem is I've had to replace mine about 4 times because water gets into the battery compartment. When you open it its a disgusting mess of gooey water mixed with metal etc. You can clean this out and replace the batteries and it MIGHT work again. In my experience it does not work and if it does it dies after a while. The hatch at the bottom always comes off and does not stay in place which is what leads to it getting water inside.<br />I am finally fed up with it and now that I think of it having paid for 4 of these (beginning from when they were much pricier than now) I have paid well over $100 for these, when I could have just bought the more expensive, rechargeable (MUCH battery for the environment too), and overall better toothbrushes they have. Trust me and make the investment and buy the more expensive ones.