We have a 2012 we bought last year. It has 40k miles and is in very good shape. Whoever owned it before me really took care of it. It doesn’t rattle going down the road. Nothing is loose and everything is built well. We were looking at them new back in 2013-17. Loved the quality then too. However we looked at them at this years RV show. Were a bit disappointed. It seemed to lack the quality they were known for. Everything felt cheap, and it just didn’t feel very well put together.
My buddy has a 17 Fleetwood Bounder and it’s the same way. Driving down the road the thing is a rattle trap. The dash is falling apart, we have to rebuild and reinforce everything under the dash. They look all pretty on the surface but underneath they are piles!
With that said I would look closely at anything you are considering. Maybe it was just the one I walked through, or maybe just the one my buddy bought. But doubtful.