The toothbrush is now for about 5 weeks in my application and I am completely satisfied. It is very handy. The result of toothbrushing can in my opinion also nothing to be desired. The surfaces of the teeth are very smooth, the brush head allows cleaning at all locations in the mouth. The battery performance has not yet subsided, so I'm assuming that the battery life described (1 week and longer) applies.
The "unpleasant vibrating" other users in this toothbrush in the reviews I can not confirm. Since this is an ultrasonic toothbrush, one must also assume that this brings a certain vibration with and just this is beneficial to the cleaning result.
I would recommend this electric toothbrush without restriction.
