While I have never owned one, I know people that do and I have shot them.
IMO they are better built than the Tokarev.
The slide is easy to remove and it uses a sort of H&K style roller bearing system.
The one I shot performed flawlessly and was pretty accurrate for someone who had never shot one (although I was only shooting at about 12 yards at an empty quart oil bottle).
I have heard of firing pins breaking, but mostly only if dry fired.
I've heard that you can get aftermarket firing pins, but I've never looked.
I own a CZ 70 (.32acp) and I do not regret the purchase, I've had people try to buy it from me, but I won't sell it because I like it so much.
IMO for the price, you can't go wrong with a surplus CZ