As much as I liked the Arctic Fox, nothing is perfect. The first problem that showed up rather quickly was the Sofa bed in the living room. The sofa bed had no redeeming qualities whatsoever, it was too short to lay on, it was uncomfortable to sit on, and it had a blowup air mattress that you slept on, and I think the problems with that speak for themselves. So one of the first things I had to do was sell the factory sofa bed and put in something more comfortable. So I went to a regular furniture store and bought one of those sofas that the back fold's down and turns into a bed. It's plenty long enough to lay on, It's very comfortable to sit on, It's fairly comfortable to sleep on, it's lighter weight than the sofa that came with the trailer, and it only cost a couple hundred bucks.
Also the easy chair in the living room wasn't very comfortable, it was kind of small, it was kind of heavy, and the foldout foot rest didn't reach my feet. So I replaced it with an inexpensive chair from a furniture store.
Another thing I didn't like was the faucets on the bathroom and kitchen sinks. Now this is not just a Arctic Fox problem most RVs have inexpensive RV faucets and they never work very well, the good news is they don't last very long and you can throw them away and get normal house faucets. I've already replaced the bathroom faucet, and I bought a kitchen faucet I just haven't got around to replacing it yet.
I replaced the analog thermostat with a digital one and the difference it made in the comfort level was very noticeable.
It's a minor thing but the valve that you use to dump the water from the freshwater tank is a little bit difficult to get to, you have to get on your knees and reach way under the trailer to reach it. But I'm working on a gadget that I can reach under there with and open and close the valve without crawling around under the trailer. The good thing about the valve is it's big and will dump the freshwater tank very quickly, which is handy when you're disinfecting the tank.
After about two years of owning this Arctic Fox that's really about all I can think of that bothered me. Now I've made other changes to the trailer, but they were just personal preferences that had nothing to do with how the trailer was built. I realize that the trailer manufacturers have to balance the size, weight, and cost of these trailers or they couldn't make a profit, and I believe that the Arctic Fox 27 – 5L hit that balance in a way that works very well for me.