I have a few CZ's that haven't failed on me, but that's only because I haven't put enough rounds through them yet. Notwithstanding other brands, anyone who thinks that their choice in a handgun will never fail is deluding themselves.
What I'm impressed with on reliability is handguns that will feed just about anything in their caliber and not fail. So I can't say I'm really impressed with a handgun design that only wants you to shoot factory ammo. I haven't bought factory ammo in years.
I'm a reloader, can't you tell?