I had one of the early Kimbers (before they were called "Ones") for years, and it is one of my real regrets to have sold it. Many a rabbit lost it's head to that gun, and it was completely reliable through who knows how many thousands of rounds, "all" temperature extremes, and shot anything (most well!). As has already been said, I've had Springers and Colts that could not keep up.
Since then I've had two more, one really pretty one that neither Kimber nor me could make run. The other I just didn't have the patience for, but it was not a well-finished gun.
That said, I've shot around folks who have great luck with them (all through the years). We tend to forget that these are just tools, and some are better than others (even from the same bench!), and they must be fully understood and vetted to be used properly. I'd never be comfortable looking down the barrel of a Kimber!
That said, after dabbling a good bit with higher end guns, I don't know why one would want one but for their own nostalgia's sake. Like my regret at letting my first go.