Will answer ONLY based on my experience - Starcraft Pop Up - No Issues, Forest River TT - out of alignment since day one but only noticed when it was out of warranty and tires were worn down on one side, Crossroads 5vr - Lots of electrical issues - when we traveled in the rain, the junction boxes underneath would fill with water and short the GFI outlets. Dealer made several attempts to fix with no luck, Coachman Class C - No issues to speak of. Current Airstream - No issues to speak of...fit, finish, and durability is much much better than any of the previous units I have owned. Wish I would have gone with Airstream much sooner.....