I use so far the Braun Professional Care 7000, the very satisfied with the whole round brush, and agree. Now I have a couple of times with my girlfriend may use the Braun Sonic Complete (that is also an advantage of interchangeable heads that a handpiece / device can use more than one person with a private essay ... ;-), and I am absolutely thrilled! It runs even more quietly, makes less noise, but my teeth feel more effectively cleaned and clean. And this brush are even much cheaper than the Philips Sonicare that cost three times about! This brush here are definitely worth their price! Especially if you buy them in a set.