ALL Travel Trailers are POS no matter the price.
If you plan on towing a TT down a two track sooner of later you will tear the axles off.
The Timbren axle-less help with that:
Those and taller tires.
But generally speaking I agree with your assessment of travel trailers. That's why I rent them instead of buying. I can return the junk to the rental place, a little more beat than it already was, and all it's problems become someone else's.
Now I'm curious what you suggest? What have you found that works better?