I had a bad crate of it. It caused malfunctions in seven different rifles (6 SKS, one 858). I believe the problem was it was inconsistently loaded, as at least once every hundred rounds I would get a round that seemed to give me half as much recoil and wouldn't send the piston back with enough force to actuate the rifle again, and would usually cause a stovepipe. Slightly more rarely, I would get a round that seemed to have more recoil than any other 7.62x39mm ammunition I've ever fired, including the Czech stuff which is in my experience on the hot side. Upon inspection of the casings that did that, I found them cracked.
That aside, the ammunition fired well but did operate on the dirty side when compared to most other surplus loadings. This bad crate was received by me about two years ago now, and I honestly say I'd buy the Romanian ammo again despite the issues. I've never heard of anybody else having these problems, so I think it was a pretty isolated thing. Such is life with surplus ammo.