It is not just Thor, my wife and I went to a local RV show a couple of weeks ago and were appalled at the poor quality fit and finish in just about everything we saw. We looked in around 25-30 class A's, B's, and C's and nearly half of them had a bathroom door that either stuck at a corner, or in the case of 3 or 4 would not fully close. How far down on the quality control levels do you have to get for the the bathroom doors to be so far out of alignment that they will not close.
Though the Thor models appeared to be at the bottom of the barrel in interior construction, the laminate counter tops had so many chips along the edges that they looked to have been cut with a dull jigsaw, and not a proper laminate trimmer router... Though the one that worried me most was a $280,000 Tiffin Alegro Red (?) where the breakers in the electrical box appeared to all be loose and canted about 10 degrees to the side, instead of being straight in their slots, also the cover door to the breaker box was broken as it flopped open when we opened the cabinet in the bathroom where it was hidden. For bonus points the breaker box cabinet door stuck also.
2002 Safari Trek 2830 on P32 Chassis with 8.1L