For $20, I'm happy. ...So far.
I have looked at a lot of different devices and $20 is absolutely the least expensive I have seen, even for a single device. Is it Apple Home compatible? It would have the Apple Home logo on the box if it is. Apple Home devices have to have an Apple Home chip but supposedly they will all can be controlled through Apple's Home app. So far I have one device that is working through the Home app.