I've owned a Kimber Pro-Varmint in 204 and 223. They both shot really well. 1/2", 5-shot groups at 100 were common. I've yet to own a CZ for comparison, but may give one a go someday soon.
Full disclosure on the 204....I only had it for about three days. Bought it, scoped it and shot a couple boxes of shells through it. A local farmer was at the house and I was shooting on the range out back. I let him shoot it and he loved it. He had to have it....and offered me more for the package than I had in it. I never did any load development with the rifle. I've never seen another on the shelf at the LGS.
I need another 204!
