nice power toothbrush [SEP] i bought a more expensive power toothbrush for my wife and thought i need one for myself after doing some research i pulled the trigger on this onefor the money you an oral b power toothbrush with good quality and water reasonable battery time per a built in stutter timer stutter every min it has most of the functionalities as the more expensive ones there are a couple of weak points the timer does not reset itself after each use and has a memory effect to be more specific if you turned off the toothbrush at mins the next time you use it it will stutter at and recycle the timer the brush is not very durable i am guessing the manufacturer intentionally makes it so that you will buy replacement more frequently