I have only owned one 1911...a Kimber Ultra Carry II and it is by far my favorite handgun I own. After thousands of rounds I have had no stopages/failure to feed. Mostly FMJ 230g reloads but also hundreds of different denfensive varieties too. Although it ran great out of the box I cannot call it perfect because it had two very minor flaws.

#1 - the finish on the safety and grip safety wore off almost immediatly. I mean in like a month or two of buying it new, carrying it and practicing with it (a lot).

#2 - The mag release was a little off. If I got carried away and pushed it too hard, the mag would stick in the well. Letting pressure off the release would let the mag drop freely. After lots of practice I stopped pushing it too hard. That solution worked but made me uncomfortable that I would have a problem in high stress. Only took a few minutes to remove the release and fix it.