It works as advertised. However, the glitches were in the setup, which seemed unduly complex and seemed to go on forever. At one point I was to scan a QR code. A single sheet had a place for one but that place was blank white. I tried the device and the shipping box. Nothing. I finally found a code inside the "manual" that worked. The screwdriver they supplied was a crudely-made phillips; the security screws need a security Torx. Fortunately I had one of those.