The assembly was due to very narrow door frames a little complicated, but the product can not help :) The template provided and the clearly specified dimensions are very good and so aids the installation takes no more than 15-30 minutes per door.
I have installed a total of 3 pieces and all fulfill their purpose. By means of the two adjusting screws can be closing speed and force to adjust well.
The star deduction is available for the quality of the paint. I have 3 white models ordered (indicated by the "W" in "7603 type W") and already in light contact with the tool, or when used on a part during assembly on a hard surface, the paint peels off. Since I use the normally only in the basement and in the garage, it is not so tragic, but who wants to use in the living room, should proceed with caution during the assembly.
All in all, a highly recommended product.