Can't say anything about your specific model, but what I can tell you is an experience one of my clients had with Tiffin.
He bought a 2006 Phaeton off of craigslist. It was nice, but somewhat neglected. He bought it, and later discovered the floor was soft in the bathroom. Turns out that is a know issue with some of the Tiffins. Anyway, he called Tiffin, and Bob Tiffin took the call. Bob directed him to a repair facility and they went to work on it. Tiffin picked up the bill!! A used coach, 2nd owner, that was at the time 7 years old.
That same client now has a new...drum roll....Tiffin!! Can't blame him with service and support like that.