Review (5/5): My Teeth Love This Toothbrush!
I've bought several of these.
It cleans my teeth well, it's small and inexpensive and doesn't have a cord so it travels easily. It also has a timer so I know when I've brushed enough. Otherwise I know that I'd cheat.
I keep one and extra heads for toothbrushless house guests. they like it too and want to take it home or know where they can buy one.
I've have to replace it only once when water seeped into the connection to the battery. They tell you to dry the brush after using so I think that this is my fault.