Getting used to but good 2

The problem with these brush heads is that they "refuse" by the swinging motion and so meet depending on the position of the brush really let it fly to the teeth or gums - and this is really uncomfortable at the high frequency. One must here simply to relearn and the brush lead differently than with the round heads.
Even the gums must get used to anything at the partial spot cleaning, you get the feeling that it is supplied with blood much stronger after brushing.
After about 10x brushing it has now quite well recorded.

The cleaning itself is truly remarkable, and who is already excited about the normal brush, an increase is still experiencing. Hopefully keep the teeth in the long run from; o)

A star deduction is available for the incredibly high price. The almost 2-fold the normal brush is not justified in my opinion. If the price remains so high, the purchase will have been a one time thing for me. Again, this seems to be probably a new version of the brush, in contrast to the "old" (deep cleansing Micropulse) costs considerably more. A difference you can not see the product images and the accompanying text, however.
Therefore your eyes, it's probably cheaper ...