I owned one. A 4" model. I'll never buy another. Beautiful to behold, but a useless item, or at least mine was. It wouldn't feed any 230 grain ammo. Even hardball would jam it up. 185's worked fairly well, but not consistent enough for a carry gun. And yes, I did the 500 round breakin. I tried different magazines. The Kimber magazine that came with the gun was crap. I don't know how Kimber got the good name and high price tag.
That said, when it did work, the accuracy from a bench at 25 yards was amazing.