I have two, and purchased my second from PSA. Bone dry out of the box. Added lube, and it works flawlessly. No canted sights.
They seem to be kind of hit or miss. My brother in law bought a VZ from them and loved it, and bought an AR later and had some issues with the upper. I bought one from them years ago and haven't had a single malfunction aside from crappy steel cased ammo shortstroking the bolt carrier.