I have their full size, "American Classic II". It is my first/ only 1911. I bought it planning on it being a 'project' gun, and it has, in fact, been just that. I can't say I'm disappointed, since I wanted something to fool around with.
Factory ammo has been 98% or so reliable. And very accurate. I think I have an exceptionally tight chamber, so if a round is slightly oversized it won't go fully into battery. This could be fixed with a reamer. I also had a 'nosedive' every now and then, more on that later.
The sear broke after 1000 rounds or so, but I was mostly to blame for that. I did some bad trigger work which resulted in the hammer following whenever the slide was dropped on an empty chamber. I figured no big deal, I'll just ride the slide forward, but I always seemed to forget and finally after banging into the safety notch a few dozen times, the tip of the sear broke off. This made it easy to order the Wilson drop in kit that I wanted anyway.
The feed ramp on mine was poorly cut, not deep enough, and at the wrong angle. Mostly fixed with a milling machine. I couldn't get it quite as deep as I wanted, but it fixed my nose dive issue with ball ammo, at least.
I had a problem where about twice out of a hundred rounds the trigger would not reset. I finally found the problem was the trigger bow rubbing against the magazine. Either the bow was unusually thick, narrow, or the channel in the frame was not quite deep enough. Either way, that too has been fixed.
I bought the gun because I didn't have a 1911, and I wanted to shoot it in IDPA. As much as i enjoyed shooting it, it got tiresome having a malfunction every other stage in the beginning. I think I've got all the kinks worked out, but until I put several hundred trouble-free rounds through it, it will stay out of the compete/ carry rotation.
All that said, if I didn't try to compete with it I would probably have less than 200 rounds through it, and think it was nearly perfect. As it is, I know it's far from perfect, but I love it anyway.