Inspect it like you would any other 1911, and if it's in good shape, grab it for $300. I own 2 Norks, one still NIB, and these things are build of very good steel with no MIM parts.
The " crap stuff" is usually voiced by folks that just hate "commie guns". Since they haven't been imported in over a decade, the only ones being sold now are the ones already here before the ban.
IMO they are one of the best clones of the original design, they aren't fancy Dan stuff, but they run good. I sold many of these when I had my FFL and got curious as to why folks kept wanting me to order them. Dealer cost was cheap cheap, so I kept one...it's still running.
I honestly expected the Chinese clone to crap out in a couple of years...it proved me wrong.
I found a NIB on the 1911.org site a few years ago, and gladly bought it for $420 shipped...not many of them around that haven't been molested.(modified)
Added this after a search on 1911.org. from folks who know more about the metal than I do.
Now if we want to talk about relative hardness of steels, Norincos are made from a different steel formulation than Colts are. Comparing Rockwell hardnesses really won't tell you much, but as a general observation, on average the Norincos are at least 30% harder on the surface than most other 1911's, including the Colt. This does not mean they are more brittle - it means that the alloy used to Make the Norincos (5100 tool steel*) results in a much harder surface when heat treated than does the Colt alloy (4140 Ordnance grade tool steel*).
*Although the exact alloy formulations are "industrial secrets", destructive testing done in the USA by the DCM (circa 1997) determined that Colt uses 4140 and the Chinese formulation used in 1911's and M14S receivers is an exact match to AISI 5100 series steel.