I've had a more than a few Colts over the past 50 years...never had a "send it back" problem with any of them, but all, including a Gold Cup, needed some work from a good gunsmith to tighten up groups at 25 yds. That said, the current crop of Colts are an unknown to me. I have no idea of their service policies nor their turn around time if work is needed.
Kimber on the other hand has a history of customer service complaints. The four Kimbers that have passed through our range here on the farm were far from keepers...all had malfunction problems and not only with JHP ammunition. Calls to the factory were answered with, "shoot it some more...like 200-300 rounds"; "'cause we build 'em so tight" then contact us and we'll take a look...total BS for a gun that's sold as a defensive handgun. YMMv, but my friends traded all four off at considerable loss. Kimber = pretty advertising, lots of hype, but that budget would have been better spent in QC on the production line. It appears that a good one is great, but it's a gamble that I'd not be willing to accept.
Best Regards, Rod