I have one. A 2013. I've put around 10,000 miles on it in 3.5 seasons. I'll give you a run down of things good and bad.
1st week we had a very small water leak. Fixed under warranty.
The duct work that feeds the upper floor register made a popping sound when you stepped on the floor near that register. It was basically 50lbs of very thin tin in a 25lbs hole. I removed it and installed some round duct from Home Depot. Fixed.
Those are the only two Northwood caused issues we've had.
Now for the non Northwood stuff.
Ours has the dark brown front cap. It's faded really bad. It will need to get painted. It's an industry wide problem with the dark brown/grey fiberglass caps.
Out kitchen and bath faucets broke. Cheap plastic crap IMO. I again went to HD and bought nicer residential faucets.
The Shurflo water pump quit. I worked with a NW tech over the phone and he sent me a new one free.
Other than that everythings held up and worked accordingly.
JMO but the Fox Moutain line is their lower end line. The rear fold out sofa should never be bought, let alone made. Pure junk. I'm not a heavy guy (145lbs) wife's only (125lbs) and both of us would sink down to the bottom of the cushion after 20-30 minutes.
Same for the booth dinette. Horrible cheap cushions.
We didn't order ours so we took what the dealer had. I removed the rear sofa and bought a real nice Best Furniture reclining theater sofa. I also removed the crappy booth dinette (sold it on CL) and bought a nice residential table and chairs. One thing about the 235 and the booth dinette is that when the slide is in you may or may not be able to walk past the edge of the kitchen counter and the dinette table. Just depends on how big you are. It's just the two of us so with the smaller dinette table and with the slide in we can easily walk to the bedroom or bathroom if needed.
If I were to order one I would order it without the rear sofa and any dinette and get my own.
I would also order dual pane windows. In 90+ degree heat the AC won't cool it down below the ambient temps.
Depending on how big you are you will want to try out the toilet. I mean actually go in the toilet room and sit on it. There's hardly any room to sit down without banging your head on the front wall. You have to do a verticle squat to sit on the toilet. Not real comfortable do if you happen to have to get up at 2-3am to use the toilet.
Those are the cons.
The plusses are it's pretty well laid out for a 28' 5th wheel. Not much storage for hanging clothes for a long trip but doable I suppose. The basement storage is pretty good for a smaller 5th wheel too.
I think it's a great size for getting into and out of gas stations, and smaller camp sites. Overall it has a nice solid feel.
It also tows great behind our 12 Ram 2500 CTD.
I see that it now has the new lighter colored front cap so that's good. And it's also got another front shirt closet in the bedroom, along with the new upgraded look cabinet doors.
Good luck in your search.
Here we are at one of our fav spots last year. The Steens Mountains.