The smooth surface and cleanability are already well described in the product and competition brief in the other reviews. Unfortunately, he does not fit the shower head from the same manufacturer without one another (of course not included) sealing inserts, otherwise he is not going to get tight. [A small incorporated hex would be useful to tighten it. If you do not want to scratch the surface with pliers benörigt you a strap wrench.]
Now, after 4 months it has fallen apart. The hose was cut off at the factory at an angle and the hose was pressed unsatisfactory (see customer photos).
10 days after the complaint is now their original packaging replacement arrived, but this time without any seals ...! Hansgrohe has no quality assurance?