We use Middle Atlantic racks for our Installs, and I have yet to have it described
as "ugly" when the install is done. Actually, it is just the opposite,and it gets me
job referrals quite often.
[Link: middleatlantic.com]I would think that your installer would also be planing on using the XP-8s to control the TV's also, at least he should be.
Depending on the rooms that the AVR's will be used for, it is no problem using
two identical AVR's. If on the other hand one room was a dedicated theater room, I would not be using the same product, but would be using product
from the same manufacturer.
For what it's worth, I use IP for my AVR at home and after everything is set up
correctly, it works great. I have yet to use IP control for a clients AVR, and always seem to opt for RS232
I also have no problem using IR if there is a input for it on the back of the receiver, and there is no need for 2 way feedback. This is also how I control
Blu-ray players.
Your best bet is to use the products that your installer is familiar with, and uses on a constant basis.