Apparently most installers don't use the supplied wires which would most likely be why there are very few complaints.

I guess it's no different then any manufacture who provides cableing with their equipment (receivers, processors, HTIB, etc). They usually provide cableing but is it good cable or only adequate cable to maybe get the job done? I think we all know the answer to that question. Would I use it? No.

I would think the same holds true for URC. They provide cableing but most installers won't use it because they have their own cable which is of much better quality.

It would be interesting to be able to setup a test environment with lots of RF interference to see how different cables perform in that environment.