As far as cheap tires and are the rims bent---
I'm kind type A. I check everything all the time. In the 7000 miles we've had this rig, I've probably checked lug nuts 20? times, TST tire monitor, check tires and hubs at each stop, etc.
The wheels are pretty heavy duty as are the Goodyear Endurance 10 ply tires. The suspension is the 3000 with wet bolts.
The tires started wearing on the rear axle about 1000-1200 miles ago. We encountered a construction zone, heavy traffic, and terrible road surfaces-hubcaps, plastic parts, vehicles pulled over, etc.
I couldn't hear what the shop manager was telling the warrantee company, but it was to the effect of bent axles.
Also, this trailer has axles that actually carry more weight then what the trailer weighs. A majority of other units only carry a portion of the weight, leaving the rest to hitch or pin weight.