Very nice looking rifle.
Have you shot it yet?
I HATE underfolders.
The only thing that is as difficult/uncomfortable to shoot is a single strut style folding stock, like the AMD has.
Neither gives a good reliable and not painful cheek weld and I have heard that the underfolders get wobbly fast being they are almost a direct copy of the German MP-40 which was designed around 9mm sub gun.
It does make the rifle look cool though.
But what is important is if you like it and can use it effectively or not.
If you haven't shot it yet, you may want to take some paracord or something with you when you do, so you can wrap it at the range to make it a little more comfortable.
I am no longer participating in gun forums.