There are three basic functions, each with a corresponding intermediate stage of combining two functions. Water consumption seems to me felt normal, but it did not remeasured.
The production quality is ok, but it is made entirely of plastic. One should at that price do not expect too much. However, I have also had the experience that reputable German manufacturer does not do this differently.
For continuous use, I can not say anything yet.
Note would be: The support of my shower rod has a relatively limited angle of inclination, thereby this shower head is "the arm" swung significantly less here than my previous, I can not align the effervescent parallel to the floor. This damages the function but not in any way.
