Unfortunately, the name is no guarantee of good quality. We use the third generation of electric toothbrushes of this manufacturer. In this part, the main problem is the choice of material for the Bürstaufsteckkopf. These metal tip wears out after about 1.5 years so from that brush heads are no longer held firmly and the drive no longer runs smoothly. This toothbrush is the third replacement. I think that I again can order a the end of 2014 as the company Braun aware that mistake will not resolve or can. One calls such a thing built Obsolezenz. In short, the customer should always buy a new toothbrush. The battery performance is modest, because with wear of the metal tip can also Akuleistung noticeably.