I've fired my 1000th round. No stoppages whatsoever. I've used a variety of ammo too, from brass to steel-cased, soft point to FMJ, 185 and 230 grain. Haven't used heavier loads yet, but will get to it once I have time to go shooting again.
Trigger is extremely heavy in double-action, but that's to be expected. Trigger travel in SA is a bit long - not as mushy as Kahr and Kel Tec, but bad enough to say it stinks without being branded as an HK hater.
Although as long as the SA trigger pull is, it's smooth and you can feel where it breaks. And it's VERY accurate. I have not gotten 2 inch groupings at 25 yards with any other pistol than my HK, not even my 1911 (although I have hit near the center a few times; they just weren't as consistent). And that's funny, considering the HK has a shorter barrel than most full sized 1911.
Although it may go through your ammo a little too fast, this pistol deserves to be rapid fired a few times. You can feel the grip melting and become one with your hand. It's one of the best feelings I've ever had shooting a gun. And the recoil on this gun is so soft (not as soft as the USP though), if I told you it was a 9mm before shooting it, you would believe me.