I have 4 XPS3's controlled by timers and a macro. 3 control my outside CFL lights and are on timers. The other controls the fan in a bathroom and is controlled by the macro. 2 of the outside lights work flawlessly. The 3rd is furtherest from the panel and every two weeks or so, it either stays on or doesn't come on. I simply hit the paddle and the problem is fixed for another two weeks or so.
The bathroom light/fan are controlled by a macro triggered by a motion sensor. Both come on when a person enters the bathroom and the person can turn the fan off if they want to. The next time someone enters the bathroom the macro turns them both on again.
Local/timer/macro control - the XPS3 doesn't seem to mind.
But, it is a big switch. For the bathroom, I had to take the 'mud ring' off of the box and grind it out a little so the XPS3 would fit in. For one of the outside lights I had to get an extension for the box. It now sticks out a little further into the porch.
Mel