The DA/SA Sigs and HKs are the class of the group these days with some claiming CZ (no personal experience on those but they seem to be more inconsistent as to how one shoots vs another one, ie a wider range of quality control).
I have not heard this... I own two CZs currently...
CZs are good to go... At most the trigger can be a little stiff and need a few hundred rounds to smooth out... But they are reliable and well built. They shoot great. CZ is known for great accuracy.