This may be worth exactly what you pay for it, but my PSA pin-together with a 16" mid-length Freedom upper is chugging along just fine. I have zero experience with any other AR, so no comparisons are possible. I unboxed the lower and upper, stripped the preservative off them, lubed it up and took it to the range. Zero malfunctions of any kind. No complaints either.
I bought one with the military-style handguard, which has since been replaced with a Magpul version. Blem lower with Magpul stock (I can't find the blemish). The upper came with a Vortex 1X scope, and I added a Magpul Pro rear sight. I dropped in an ALG ACT trigger, and couldn't help but add a light. I could have found a very similar complete rifle for what I have in the "build," but I'm very happy with what I have. Next time around, I'll do a real build and use their Premium lower parts kit.