After following the previous reviews I can only confirm the general satisfaction. Easy, intelligent and very practical. Only problem, by installing I found myself with 2 small caps RIGHT !!! The left is different to notch level ... so not wanting to start a home I rectified the situation with a mini tool. This poses no problems but it's a shame this lack of control to packing ... Can I expect a correction from the manufacturer or the depositary ??? Hence a star less.