If you want the option to haul a car then that might put out the deck-over options like Trails West and Logan as the ramp angles will probably be too steep.
Our 25 year old Haulmark Edge has held up well overall. It is heavy though. All steel frame and they sheeted the interior with 3/4" plywood after the insulation, then the white finish board over top of that. Once we found that out mounting things to the wall became a non-concern (with proper sized hardware). No major structural issues.
A few things we've had to re-vamp over the years like the way the cabinets were mounted, door weather stripping, and a lot of the interior screws holding benches and trim were undersized and vibrated/pulled out after a few years. In the last 5 years we had to re-seal some seams in the front and around the roof vents. Whatever sealing compound they used finally just dried out, cracked, and started leaking. Working on the wiring for the clearance lights is a nightmare because they used just the right amount of wire and laid it into the wall framing in a way that you'd have to tear the whole trailer apart to replace it.