The Turkish copies are not labeled "Norinco."
If you are Canadian, (and "Canuck2a" certainly suggest that is true), you are likely looking at Chinese Norincos. There are pros and cons.
Pro:
1) Good steel
2) Generally very well-in spec dimensional work
3) Most always run well and are solid, dimensionally correct.
4) Chrome-lined barrel (if you don't like cleaning)
Con:
1) Made by virtual slave labor by a totalitarian regime
2) Barrel chrome not always well applied (chips - but not often)
3) grip bushings/frame threads non-spec (rarely matters)
4) Occasionally barrel-link down is not perfect (1911Tuner has written about this well)
5) bluing not really deep or top notch, but acceptable.
Sooo...
If you have a Colt or other high quality used option available a little bit more, you are better off going with a used piece for a few more dollars. But compared to lots of other low-price options, like Armscor, Taurus, and lower end Springfields, it stacks up just fine and has some bonuses over those.
I have one I bought new in the box c. 1993 here in the US, before the ban and before anyone knew anything about them. I still own it despite a ton of other 1911s, so it must have some virtues. I will say this - if you could buy a NIB Norinco 1911a1 GI for US$400 new in the USA, I'd buy another one now, and you'd see a lot of other manufacturers disappear - it's a value.
So, my comment would be that if you don't have much in the way of choices, it's a good value. I have picked up a well used Colt '70 ($500), a mint Colt '70 ($700), a Colt 1991 ($600) and a Colt Sistema ($400) all in the last few years. I'd rather have any of them over the Norinco were I to have only one. But if your local/internet buying options are not so plentiful, or you aren't as inveterate a shopper/deal hound as I am, then the Norinco can be a good value.
I don't have a super-high opinion of the SA as it is not made here (meaning US/North America), has known issues with extractors, and SA has less than a stellar rep with cs on solving the already known issues. If you are going to spend your gun dollars on a Chinese made or Brazilian made gun, what's the difference where the money goes? BTW, what is the cost difference between the Norinco and the SA GI in Canada?