Durability was the primary reason I chose an Escape over a Sportsmen. I prefer the look of the Sportsmen. My Escape has a sticker inside the baggage door which says the trailer was actually made by a different company from KZ: Elixir inc. (Their name is from memory.) I think they are in Elkhart. I looked them up online when I first got the trailer, and they make cargo trailers as well as other things. KZ must have contracted the coach shells, installed the interior along with all the self-contained engineering, and then sold the final product under their own name.
The interior is all stapled together. This is no longer done on any mid to upper price range trailers. In fact, most trailer manufactures advertise that they do not use staples. Staples eventually loosen in the same way your screws did. My twelve year old grandson, when he was trying out the front bed, swung his shoes in and caught the edge molding of the bath. It pulled free from the wall corner revealing two staple. I pushed it back, but it no longer has the 'hold' of the initial stapling.
Now, all this being said, KZ is not selling an expensive trailer. I was well aware of what I was buying. I would not have been able to afford a new trailer, if I had purchased one that was built to higher standards… not afford without financing, that is. My feeling from looking closely at the exterior joinings of Elixir's coach, and knowing that it has a crowned, aluminum roof, and an aluminum frame, is that I got a lot of value for what I spent. I'm simply not going to let my grandkids inside again. (just joking)