Is indeed a nice part. Here I had the feeling of value for money, because such doorbell plates in my view, but are quite expensive. My decision for this product lot based on an assessment of the bell plate with several buttons. We are so far as it is also very satisfied. The delivery arrived very quickly and was well packaged. Unfortunately turned out to be the "easy assembly" as a fiasco. I spent several days in order to connect the bell and failed with my basic knowledge of circuits. It was not until a friend who is familiar with it, we managed to obtain the bell run, with numerous cross-connections. It is true that the bell is designed for different systems, it is probably the crux. Because there is only a meager explanation and several schematics for different bell systems.
It's done and the bell assumes nice and reliable service. Especially good I feel that one can label the signs themselves and change.