We got our 2013 253-FBS in July of 2012, and have spent about 14 weeks traveling in it. So far, we not had to take it in for any repairs. The biggest single problem that occurred was the rails for the drawers were not installed properly, and kept falling off. I was able to fix them myself, without much trouble
Except for one feature, we are extremely pleased with it. The one annoying feature, is that without opening the slide, you can't access the fridge, or the bathroom, or the bedroom. We knew that before we bought, but it is more inconvenient that we thought it would be.
2011 Silverado 2500HD Duramax, 4x4, crew cab, long bed
Palomino Puma 253-FBS, 27' 5th wheel
1994 19' Class B on Chevy chassis