Thanks again for the quick response.
The problem I am having is that I live in Japan; there are no authorized dealers/installers at all in this country. So I do not mind to pay a bit more from a dealer as long as they can provide help over mail.
From everything I have seen about Collage, seems more directed to the DIYers and I can see explanations and videos on the web about what to do if one of the zones do not play well within the network. In my case, if any zone gives me headaches, I would patch an electric wire from the central closet just to connect the device
remember I have conduits to all walls, so I can sort of create a dedicated electrical network just for the system if required I do need to rewire the speakers (currently going to the central closet instead of the walls where the plate-wall will be), but this should not be a big deal (any idea if cables from the ceiling speakers to the central closet and then back to the wall-plate in each room is ok?).
I do like Nuvo (and I have heard so many good things about it) and other Russound systems, but what I want to avoid is to buy another music server (like Nuvo, Russound, Crestron ) when I have a quite equipped ReadyNAS with all my music on it and barely used now.
If Collage were an A-Bus system I would not be thinking twice. If Sonos and Nuvo had intercom and wall-plates I would not be thinking twice either.
Any one with any experience installing or using a Russound Collage system?