I've had a couple CZs now. The first CZ I ever got was the 75b, and it's never jammed on me after thousands of rounds - not even one. For that reason alone I've kept the pistol till this day. My SP-01 is a tack driver it has yet to jam either. The only guns that have consistently jammed on me (for whatever reason) are 1911s. My CZs I can shoot side by side with my Glocks, not clean them for hundreds of rounds, and they keep running.