We're very satisfied with our Northwood Fox Mountain. We've had it for 3 season and only a couple problems that Northwood caused. Both very minor. One I fixed myself an the other was fixed by an RV shop.
Some of the other problems are industry wide. Like the faded front cap, cheap faucets, squeaky floor vent, etc. After winter all I do is take the cover off, run some water thru it and turn on the propane. Like a good lawn mower it fires up on the 1st or 2nd pull. We have about 10,000 miles on it and camp about 50+ nights a year.
We look at RVs at RV shows off and on and we still come back to Northwood. They seem to have a more solid feel to them. Not as flashy as some but that's fine with us.
We are looking at getting something else in a couple years so after a couple more years with our Northwood I'll have a better idea of how well it's built. It's easy to say any trailer is really nice after 1/2 a dozen nights in it. Give it 5-6 years and that's when the quality or lack of quality shows.