CZ is a great gun. I owned on in 9mm and it shot 100% of the time and was the most comfortable grip I've ever felt. They are supposed to be nice and accurate too. All steel and Thumb safety.

I owned one sig and it was a 1911. Never malfunctioned. My buddy owns some sigs too and never had any problems with them.

The only thing about the CZ's is they can be hard for people without a strong grip to rack the slide because there is less of it there to grab.