After about 2 months in the service of the shower head is completely calcified. This Kalkabweiser are a bad joke. Furthermore enters water from the edges, which represents the generally poor workmanship. Even the Umschaltmechanismuss is defective and can no longer be switched on the fly. The hair-washing mode is much too narrow to take a shower well the spray pattern ago, when the whole shower head is connected, then the rays are so soft that we think that if there was no soap rinsed. In addition, when water runs continuously off a bit by dropping or because the head is oblong-shaped, that the water collects at the corners when he does not depend exactly in balance. All in all a nice idea but nothing more. I'm going to either dispose of or hope that the provider responds to my return request and get me a shower head for 10 at the hardware store, which hold at least two years before you have to replace him.