What a coincidence, I bought a Thor Tahoe Fury 29' last April. I'd say the quality is way better than average (from my research), the structure is near the top of the heap with the aluminum laminated walls.
I just got back from San Felipe, Baja with two quads and my dirtbike in the trailer, fits great. Drove through a huge storm on the way down, found out that the wheelwells leak a bit while driving so the limoleum got a bit wet, but warranty will be covering that and any issues with water inside. Very stout structure, love the generator, fueling station, microwave/convection oven... From my research, most EVERY trailer has some small issues from delivery through the first few trips, I don' think this trailer was worse than other stories I've read and way better than most!
Matter of fact, I'm already thinking of moving up to a larger 5th wheel Fury, make ya a heck of a deal!