The fitting corresponds to the description, it seems to be of good quality (prolonged use is naturally made) and can be mounted properly. Due to the height of the fitting can, if mounted on the relatively thin sheet of kitchen sink, naturally oscillate slightly. She does due to the large spring that yes, the design essentially determined, anyway. I think that is acceptable. It could be possibly by a much wider mounting ring decrease, which could, however, visually disturbing. Otherwise, as I said well suited. 5 star there would be if the valve would be really absolutely silent, but the Durchflußgeräusche correspond basically the price.
The fitting is advertised with "three spray modes". However, it has only two spray patterns, spray and jet.