Do you own any other hand guns?
I have owned both, here is what you should consider.
CZ, heavier dA pull, heavier overall, more comfortable grip, and more natural pointer.
Glock, same trigger pull each shot, lighter,
I only own the CZ now. I prefer a heavier DA pull if there is no external safety. Plus I like the way the CZ points. I miss the Glock trigger, and weight. But I feel more comfortable keeping one in the chamber with the CZ over the Glock.