I got to try one yesterday. I really enjoyed it. I only put ~50 rounds through it myself but it was comfortable and easy to shoot. The trigger was good, light, with no discernable creep. Magazine springs were pretty stiff and the owner couldn't load them without using the mag loader. I did it by hand but could feel the stiffness.
Accuracy was good as well. My groups were a little looser with the SR-9 than with my CZ-75. Sights were a shade small but highly visible.
Fit and finish were both very nice. It's not a barbeque gun but it's a good utilitarian piece.
I was surprised that the grip was as comfortable as it was. I have big hands and had anticipated that it would be tough to find a comfortable hold on the slimmer handle. Not so. If felt natural right off the bat.
I had one failure to go completely into battery. When I checked the round there was a ding on the nose which allowed it to get hung up... not sure if it was dinged before I loaded it or somehow happened on feeding. It was the only round that had a problem either through the 50 rounds I fired or the ~250 the owner fired while at the range.
I brought along a magazine for my P-95 to see if it would fit the SR-9. Nope, not even close.
If I was in the market for another 9x19mm spitter I'd put this one on my list of contenders near the top.