Just saw this thread again and realized there were a couple questions for me! Sorry for the long delay----
I plan to control the Leviton using the in-wall (wired) controllers. It does support RS232 control codes but I don't think an automated solution adds much in my case. The wired controllers require an Ethernet cable to each location - something that was easy for me to install given it is a new house.
I'll control the sources from the room they are in or via my ipod touch in the case of iTunes running on my PC.
For the home theater itself, I'll use my new Denon 4310. I don't think the Leviton has enough oomph for me.
