I have a basic GI 1911A1 from Springfield Armory. Nothing fancy, just a "vanilla" handgun. About two years ago while qualifying for Title 18 carry, it malfunctioned three times. I still passed but was concerned a little because I was using Winchester SXT at the time. My Instructor (a ret. QP) and I had a problem with trying to figure out what was going wrong. So I sent it back to SA along with the magazine I was using and advised them that this was my carry gun and explained the malfunctions. I even advised them the ammo used.
Got it back within 2 weeks with a new barrel and fitted barrel bushing. Since then it hasn't malfunctioned once.
With that kind of unexpected service, I'm going to stay with them. It is a great Winter handgun for Title 18 carry but not so much in the summer. Going to go with something this summer that is smaller and that I can hide while running/walking.
Kind of tired carrying the .45 in Blackhawks version of this
www.activeprogear.com/jogger_holster.html and being asked all the time, "Where's the Puppy?"