We picked up our 08' 3600RL a week ago this past Friday. So far we've had a few very minor problems, several loose water connections at the docking bay, some very small nicks on trim, some caulk needed at bottom of front door, outside handle at door installed wrong, shower stall leaking, etc. The biggest problem we've had so far is they put the wrong color dinette chairs in the coach...green just doesn't go with this camel suede interior. Factory has already authorized replacement, though.
The dealer service, however, has been another story. Charged over $300 to move WD from trade-in to new unit...had to remove and reinstall ourselves as it leaked at the hotwater connection. Dealer didn't tighten enough, and then stuck vent hose over vent pipe, not even using a clamp and left inside plate completely off! And then they couldn't find time to do the minor warranty work after having it all day; we ended up fixing most of it ourselves! Not too happy with them!
Overall we are very happy with our Bighorn...only time will tell, however. So far the workmanship seems quite good, small problems are to be expected in these things. Haven't owned one yet we haven't had to do some work on.