This all sounds great -- until, for example, you are trying to eat a snack while also watching TV. Or one of a dozen other things where the automation gets in the way. Or, equally worse -- it's not perfect. Sometimes the lights don't change, sometimes there is a delay (so user presses the button multiple times) and suddenly everything catches up and curtains are closing and opening and closing and opening..

Any of these cause WAF to go to zero, at which point, you rip it all out.

So many times when it comes to home automation, otherwise rational software developers forget what people actually want to do, and skip to what the technology makes possible but doesn't actually make anything easier.