I got mine in January. Engage Armament got 1 when they first came out and I bought it. I paid more than I wanted to, but I've shot it a lot. It's my go to fun to shoot rifle. I'm in the minority - I use Ruger mags. I already had a SR9E with a couple of mags, so just stuck with them.
To me it's like a higher powered .22. Little recoil, pretty cheap to shoot and really a lot of fun. It's accurate and reliable to boot.
Mine wore a red dot for a while.
It's currently wearing a Vortex Crossfire II 2-7.
I REALLY like this setup. Admittedly, it's overkill for 50-100 yards, but even my old eyes do pretty well with it.
It's my first PCC and won't be the last.
Mine's still just in irons. I intend to put some kind of optic on it eventually, but there are just too many options 
(I know...first world problems 
)
(This is especially frustrating because I have an American, and not the others 
) Comparing the mag that came with the PCC to my Americans, I think it would just be a matter of a little dremel work on the catch hole in the SR9 mag to make it American compatible. One of these days, I'll get around to screwing up that mag...it's not like it does me any good anyway 
