The installation instructions were complicated skipping around depending on your fan model. Once installed it worked flawlessly on my older model fan. ATG customer service is fantastic, I highly recommend dealing with them.
Having the wall control, especially one with so many options, has saved me from having to find a step ladder before being able to change the fan direction or speeds. Much easier than using a remote (I have enough remotes in my living room already, thank you ;). I love the light dimmer, too.