I'm not sure I agree with that. The Zastava products are just as good and generally at the same price point.
I can't disagree with the N-PAP. Most of my experience was with the M70 style stock on the PAP's, which beat the heck out of my cheek. Now that they are installing a more traditional AKM shaped stock those issues are no longer a problem. I think either the PAP or WASR are the safest choices in today's market.