Was it easy to install? (As a light switch)
I've put a few of these in around my house. All mone are Interstatic brand or something, but same deal. If you have a little experience with wiring, easy as pie. Instructions are usually in Chinglish but diagrams plus common sense is enough to get you through install.
Very important - make sure to buy the one that does not require a neutral wire unless you really know that you have a neutral wire in the box and you know how to pull it out and add a wire. You don't want to get one that needs a neutral and then commect it to the ground wire. It will work but violates code (i wont debate if its safe anyway). The non neutral wire ones seem more flexible too, can be regular or 3 way switch, and can connect to a neutral wire if you have one or to load/line if you dont