Kent O'Reily of the Miami PD was shooting a polymer CZ(not sure which model) during a course of fire at the USCG range in Florida recently and his frame rails snapped on him. He also said that several other officers were having problems with their polymer versions as well. It seems the polymer frames are not quite as durable as the metal alloy models. The classic 75b with steel frame seems to still be the best overall CZ model.
As for CZs being super guns, be careful of internet hype:
1993 FBI pistol trials:
-14 models of pistols tested(5 of each)
-The FBI did not accept pistols for testing from the manufacturer. They purchased pistols from the market to ensure fair testing.
-All pistols were tested for reliability, durability, service life, and consistancy when exposed to expected service conditions.
-Pistols that passed were those made by Glock and Sig. Pistols that failed were those made by S&W, Ruger, Colt, CZ, FN, Browning, Beretta, Tangfoglio, H&K, Steyr, and a few others.
2002 Department of Homeland Security pistol trials:
-43 models of pistols were tested(5 of each model)
-The DHS did not accept pistols for testing from the manufacturer. They purchased pistols from the market to ensure fair testing.
-FBI testing protocols were used.
-Pistols made by Sig and H&K passed. Beretta pulled out early. CZs were also in the testing and failed.
2005 Department of Defense pistol Trials:
-28 models of pistols were tested(5 of each model)
-The DOD did not accept pistols for testing from the manufacturer. They purchased pistols from the market to ensure fair testing.
-FBI testing protocols were followed in addition to some extreme dust testing.
-Only pistols made by Sig passed. Beretta pulled out early again. CZs were once again tested and failed.
Recently, I talked to a Federal instructor at FLETC who had more information on the NATO testing in which the CZ P-01 passed. The testing only went to 15k rounds, the manufacturer was allowed to replace springs as often as every 1000rds, and broken parts did not result in a failing score if the pistol could be back in service without replacing the barrel, slide, or frame. Also, the pistols that were tested were submitted to NATO by the manufacturers.
CZs are pretty good guns. I still enjoy shooting my old 75b and will likely never sell it, but lets keep an element of reality here. That's the beauty of US police and military testing. It really weeds out fact from fiction, and gives the civilian consumer a way to determine which company is pulling their leg and which isn't.