Casey, no an expert, but the best term I have heard is "indifferent and varying quality". When Universal first started making them, they were using GI parts. As the source of those parts began drying up, they started making their own, and changing the design, with the result that many parts do not interchange with the GI carbine, and when (notice I did not say if, but when) a part breaks, you will not be able to get a replacement part. There IS HP and JSP ammo- question is whether it will feed in YOUR carbine- they were made for round nosed ball. Unless price is so low you could consider it disposable, would pass. DO check the ODCMP website for carbines. Price may be higher, but it IS a GI carbine in working order- guaranteed.
What we have here is... failure- to communicate.