I have not had any major issues with PSA…
AK-P, which is now SBRed, had the aluminum top cover chewed up by steel cased ammo. They swapped the cover, but steel wins over aluminum.
Had a 11.5” build with their lower, originally pistol but now also SBR, which the front sight was canted. Sent the upper back, and they made it so the zeroed rear sight was closer to center. Shot of how I was just able to get it hitting POA.
I got two other built lowers; one SBRed as a DOE gun and the other a pistol lower. Both are 100%. I plan on getting an H&R 10.5” 9mm upper to allow for a little more flexibility with the SBR
I also got an H&R 604 clone. I swapped in a chrome BCG. Extremely happy with that rifle, as it is what the AR-15 was supposed to be… 20” lightweight rifle. Gray anodizing was something I wasn’t sure if I’d like, but it really grew on me.
I don’t see myself buying more PSA guns, unless it is something they just have a great price on (got a Colt 6920 and KelTec SUB-2000 from them at decent prices). Sourced some 9mm in the weight that I’m not huge on (124 grain), only because of one pistol that can’t shoot my 147 grain.