The toothbrush Haat a strikingly slim design, which I find very good. Unfortunately, the cleaning service does not correspond to my expectations. The brushes are very hard. One does not come in the interdental spaces, but rather on the surface dressing. The noise is not annoying. What uses, however, when the cleaning result is wrong. Very unfortunate that this new generation of toothbrushes can not keep up with the predecessor Oral-B Sonic Complete.