I'm going to have to agree to disagree on this one. I'm not a Glock fan-boy by any stretch of the imagination, but all things being equal, this has not been my experience. Granted, I haven't seen a ton of rounds through the Shadow 2, but CZs in general don't show the reliability and longevity that Glocks do. However, needing a little more TLC and parts replacement on competition gun is not necessarily a negative if it gets you any sort of advantage, which I couldn't disagree with.
Of course in terms of competition, there is one thing I've come to learn with regards to competition pistols and their reliability. Suppose you were to ask me between two guns at a match I frequent, which would be more reliable. My first question would not be WHAT kind of guns, but WHO is shooting and maintaining them. Hence why I underlined "all things being equal" above. YMMV