Non-shooting initial impression:
I love it. Fit and finish is perfectly fine. No loose screws on mine.
Sites are really high. Stock is a chin weld and is going to be awful to shoot. Same as the real one, I assume. I'd have maybe preferred a little thicker sheet steel for the stock but I don't know what the real one was like.
Feeds and ejects heavy snap caps in pump mode without issue.
Latch that locks stock when folded was tight as mentioned by others but that's because there is a rubber bumper under it for shipping. Take that out and it works much better. Still a hair tight but getting better as I play with it.
The button to fold the butt plate piece is fiddly to do but that's the nature of spring pin detents. Probably get easier as everything wears in.
The arm hook is stupid and impractical, just like the real one. Locks in firmly.
Button to switch between pump and auto works without any issues.
Summary: impractical, heavy, and bulky shotgun that will suck to shoot. With a fixed stock it would be pretty decent. No one is buying this to be a workhorse gun. I'm very happy with it and would absolutely buy it all over again.