I have a little trouble with the electrical brushes, it does not leave out the bits stuck between teeth. The pressure sensor and funny but I still gums bled when I did not force, when in manual brushing me that this happens very rarely. This one is not better at home after this remains the most effective I've tried it, but at what price! The small timer and funny, but hey it's a gadget that inflates the price. The build quality and good and handy carrier I find it noisy by cons, not counting brush your teeth 4hrs morning without waking your wife sleeping in the next room!