Fitting slightly above average quality

Overall, the valve is okay. Also with us they did not fit through the hole and the standard sink had to be drilled out which was a bit annoying. Just as Robert was with us right warm and left cold (ie falschrum). The solution is rather simple: the valve has the connection hose C (Shortest Schauch) with B are reversed (the heat source). Important to the valve itself (10 keys), not the ports in the unpressurized Untertischgerät.
I assume that the labels were on the hoses easily interchanged and assembled these things simply had no plan.
For the rest remains to be said that the fitting manufactured in China does not have a review of the hygienic suitability of materials and materials in accordance with the Drinking Water Ordinance of the Federal Environment Agency.

Anyone who takes a critical view this faucet should not be used in the kitchen or where potable water is to be taken preferably. It remains to say, that would stay away from anything a professional installer.
Decide for yourself!