Because I have two residences for professional reasons and my electric toothbrushes do not want to carry back and forth (they also not likely to forget accidentally), I have gained two. To even be able to compare two plaster systems but also because me the compactness of the Braun Oral-B Pulsonic Slim (unfortunately only with NiMH battery) particularly like because they do not require as much space to stow when traveling (almost as compact and slim as a manual toothbrush), I have gained me this in addition to a Braun Oral-B Professional Care 3000. Even though I have cleaned me before purchasing an electric toothbrush very thoroughly teeth manually, the cleaning performance of the Braun Oral-B Pulsonic Slim is much better even with less brushing time, with less strain on the gums. The cleaning power of the Braun Oral-B Professional Care 3000 is but clearly better at even lower burden on the gums than the Braun Oral-B Pulsonic Slim. It sweeps after brushing his tongue over the tooth surfaces, they feel at all points in the mouth on much smoother than before with manually polished teeth. The functionality with the compact charger and the processing of the toothbrush made of durable and quality plastic is great. The two star trigger there because of the NiMH battery is far from the life reached such a modern LiPo battery and additionally brown design its product models that you have to throw away them when the NiMH battery due to the approximately 3-5 years limited lifetime loses its storage capacity. This is (still growing here the plastic waste mountain steadily) delight in terms of the fast growing and growing e-waste mountain, with which we especially the third world and the oceans, is not justifiable. Should Brown in this regard change its policy once, there in the future from me 5 stars.