This isn't a high-end company, the protos are generally better looking then what ends up on the shelves, but with NECA the gap isn't that big and most of the time the final product is pretty darn close to the protos. Other than that, the only thing you really have to keep an eye on is their QC, especially with the paint apps; I find with NECA products its best to scan through the shelves first to find the one with the best paint apps, this isn't to say their paint is terrible, but often a figure might have a misaligned pupil or some such that isn't really noticeable until you've opened it up and tinkered with it a little, I myself was quite disappointed to find that my Clayton Carmine figure had paint apps on the details on his right leg misaligned.
And finally, there's always the chance you might get a figure with lose joints or a broken joint, if that’s the case I hear NECA has pretty good customer support but I haven't tried it myself yet so I can't really say.
I know all this sounds pretty bad, but NECA is, in my opinion, the best non-high end company out there right now, but I’m trying to be realistic when describing what to expect; just pay attention to the paint apps on each figure and you should be fine, it's fairly unlikely you'll get a figure with broken joints or something.
