Good post Arch!
We have been lucky. The first new rig we bought was a 2009 Fuzion 302 that we still have. Have had some minor things, but nothing major.
A friend just traded off a 2010 Road Warrior that was nothing but problems from the start. His list of 30 some problems were mostly small but included the roof trusses collapsing, sides delaminating and a slide that needed major repair. This year he thought all the problems were behind him, when he found that the rubber roof was coming loose in several spots. That was it and there is a new rig in his drive.