I use many years electric toothbrushes from Braun. But had so far only the models with rotating brush heads. They clean the teeth definitely better than any manual toothbrush, therefore you can purchase suggest to anyone who wants to do something for his dental hygiene - tooth replacement is expensive ... This model is now used another method to clean the teeth and that the ultrasound. Anyone who has already received the dentist once tartar removed, has made with something comparable already experience, although it is of course not as uncomfortable to brush with this toothbrush his teeth, but to get away with the ultrasound "hook" tartar. On the contrary, the pulsation is indeed unusual at first, but never been painful to me. By foaming the toothpaste through the ultrasound covering is almost blown up by the teeth. One must, however, be switched from its grooming behavior somewhat. When rotating brushes you go from one tooth to another, leaving the plaster work from the brush handle. Brushing with the sonic toothbrush is more reminiscent of the teeth with an ordinary manual toothbrush. It takes a gentle, normal cleaning movement, but which is amplified by the ultrasound head of the brush substantially from the effect and leads to a thorough cleaning of the teeth. You feel like it to very smooth. The slim shape of the toothbrush also reminds me of a conventional manual toothbrush. The battery lasts a few days, that is for a short stay over a long weekend, you can leave the charger at home. In summary, the brush is worth the money and I would definitely buy me back.