First, the CZ-52 has nothing to do with the current CZ's. They were not even built by the same company or the same factory. They are still excellent pistols.
As for the CZ-75 and its various types, I have owned and shot most all of the all metal ones. They are an excellent pistol, and it was the CZ-75B that first showed me that autoloaders could be reliable, converting me from nearly 30 years of carrying a revolver. The CZ-75 Compact is a nice weapon for CC, even if it is a bit on the heavy side. The CZ-75B P-01 is a Nato approved pistol, and the ones that I have owned and shot were flawless. When it comes to 9mm or .40 cal pistols, CZ's are what I use. I did trade the .45 CZ based EAA Witness for the 13 shot Glock 21SF because the EAA was just too darn heavy for a 10 shooter. The Glock 30 has the same 10 shots as the EAA and is far lighter and more compact. So, for 10mm and .45 acp, it is Glock for me. For anyting smaller, give me the CZ.