To be honest, I never cared about HBE extra frills in oral hygiene. I have a normal electric toothbrush, that's it. But this product has actually opened me how much more you can do for your oral hygiene, and how easy. The unit mainly helps the gums to relieve what is very pleasant because you in the worst or best case also avoids bleeding gums. In addition, leftovers are removed, providing a quasi dentist moderate mouthfeel. So much for the postiven sides, at least the most obvious. The for improvement: As annoying I emfpinde especially the relatively short duration. Since four different heads are resolved, it might be assumed that the device is designed for up to four-person household. A quarter of an hour is sufficient a four-person household hardly to use in turn the device. At least in our family, the oral cavity hygiene designed so not entirely straightforward. Even the cable seems to be relatively short, you have little room for maneuver with the device. For the somewhat conspicuous volume I can not sgane because I have no comparison devices. I could, however, imagine that there would have been possible, especially for the not entirely simple price. Nevertheless outweigh the postivien sides and I could well imagine, to acquire and to the follow-on products made by Braun / Oral B about oral hygiene.