I also have a few from the latest run, and the quality is abysmal. My examples for the most point are painted ok(ish), but the assembly quality is downright terrible.
They have spacers under the trucks to bring the height up, since the 1015 boxes glued to the end platforms otherwise have the coupler height too low. But as said, not always are the spacers there.
In addition the metal wheelsets on these cars are also frequently a little wonky...
I bought a lot of HO intermountain kits back in the day which were pretty decent; Needless to say I'm not in the least impressed with their RTR assembled stuff in N and I'd be nervous about buying much else from them now.
Recently I've bought one of their ACF 4650 hoppers too, and its better then the grain cars although not perfect. The 1015 boxes are at least screwed on rather then just CA'd on like the grain cars, but they still aren't centered! The end framing isn't all twisted and deformed like some of my grain cars though at least.
Needless to say I'm pretty nervous about their upcoming FVM autorack re-run, I'd be in line for a bunch but the dubious assembly quality it making me have second thoughts, at least about buying them sight unseen.