Maybe its because this is the first used RV we bought in a while and all the bugs were worked out, but I have no complaints on quality. I've had to replace a relay or two, get the caulk gun out, tighten a screw - but all part of ownership I believe.
Coming from a 5er world, this is a world of difference in build. As someone stated above, I have real faucets that the nickel finish doesn't come off with soap, real suspension, real flooring, real counter tops, etc. I swear, our last fiver company would go out of their way to find a knock off of the simplest things to save money.