I bought this to replace a fibaro zwave shutter controller. This one is a series 8 instead of the 5 that I replaced. The unit performed well, but I would say inclusion is a little more "fiddly" than the fibaro & aeon units I have, and the screw terminals were a little smaller than the other 2 brands (this made getting standard power cable into ports a little tougher). So far hasnt missed a beat operationally though.