We're on our 3rd Newmar, my parents owned a Tiffin, good friends of ours owned a Tiffin.
If we were buying today Tiffin would NOT be on our list to even consider. IMO they are the most over rated MH on the market today. They do have a great reputation for factory service, and it seems most Tiffin owners know it.
The parents made the trip to Red Bay, the "fixes" didn't last as long as the trip home. Theirs spent a lot of time in my garage.
Our friends Allegro Bus made the trip 3 times. When it needed to go again they gave up on it and went back to a Winnebago.
I'm a big Newmar fan, for a reason. Ours have been excellent units with very few repairs. We've never needed to repair any "Newmar" part of the coach.
Add in Comfort Drive and its an easy decision.