We've had 5 of them now between my dad and I. A 1999 40' triple axle gooseneck, 1999 24' v-nose, 2004 6'X12', 2006 7'X14', and now another used 1999 24'. We had to remount a couple of the overhead cabinets after a few years in the 40' trailer because they just missed the overhead roof spars with the lag bolts and they were starting to sag. The first 24' has been solid and my dad sold it to one of his friends and is still using it. Sold the 6X12 to get the bigger 7X14 that I have now for MX use and it is solid. The second 24' one my dad picked up used last year and it seems really solid too other than right above the wheels the road crud has started to eat through the bottom of the outer aluminum sheeting. A new 6" strip of diamond tread along the bottom will fix it. Fixed a the brake wires under them from time to time when the factory connectors came apart, but that seems to be something that is a maintenance item with any manufactured trailer. No structural issues with any of them.
Would buy again based on previous experience.