As requested by Khorne, I stopped by J&G and examined their PSL offerings. They're currently sold out of the Romanian PSLs that were priced $599.95 and only had the PSLs assembled by Century from Romanian parts, priced at $629.95 - so that's what I looked at.
The action felt a little gritty (typical of dry parkerized surfaces rubbing together), but there was no binding or anything. The machining was smooth and without visible toolmarks. Wood was typical Romanian plywood with a heavy varnish. There were a few handling marks on the gas tube and scope rail, not sure if this was from the factory, shipping, or being the floor model at J&G.
All in all it was about what you'd expect to see on a Romanian Kalashnikov. I couldn't say how well it would shoot from my examination, but I didn't see anything to give me any reservations.
I'll look forward to hearing a range report from Khorne, as well as a report on how it feels before and after a bit of Slipstream.