Yes, to start with I ordered my 5th wheel from factory, I asked for duel pane windows and I got single pane. I have contacted the salesperson and the manager of the dealership and after a year I still do not have the windows. That was $5000.00 out of my pocket. I have also contacted them about repairs, and they will not even return my calls or emails.
I purchased my fifth wheel from the explore USA dealer in canton, tx.
Sales process was not very pleasant.
Am taking the trailer back to the dealer in mid November for a couple of minor warranty issues and some damage repair due to recent blowout.
I'll report back on experience.