Well, the CZ52 is definitely sexier than the TT-33, in a Soviet locomotive kinda way...
Milsurp ammo is unlikely to be cheap again, but availabilty is the real problem at the moment. Fortunately there are (expensive) 9mm conversion barrels out there for both guns. I've seen them go (for the CZ) for over 300$, usually. Instead, I picked up a spam-can of 800 rounds (Bulgarian, I think) for 175$ (yeah, yeah, I know it used to be 80$; get over it!), and that should last me until the supply re-establishes itself.
I like unusual and unique firearm mechanisms, so the CZ is right up my alley. Dual roller locks (as stated earlier, similar to the MG42 in concept) lock the barrel to the slide until the frame forces the rollers to drop away, freeing the slide to yank out the spent casing.
With a (usually functional
) decocker (DON'T TRUST IT), sear safety, rebounding hammer with block, and firing pin block, it was a very feature-packed gun in its day. It's actually pretty simple, despite all those features, too. When I tore mine down to pins for cleaning and polishing in my refurb project, I was suprised to see it consists of only a dozen or so parts (yes, counting springs and pins, too). Removing the barrel from the slide is more difficult than most guns due to the rollers, but I don't think there is an easier gun to do a full tear-down on. Basic field strip is a joke, pull a knurled pin while pushing the barrel back, and presto!
On mine, the decocker mechanism is not worn, so it is perfectly functional and safe. I will not rely on it, though, because the instant it
does wear, it could set the gun off. Safe decocking practices go double for this gun. The reputation for broken firing pins is very real; the original pins were cast in very hard, brittle steel. Half a dozen dry-fires will break it. The extractors have a (much rarer) similar issue. Fortunately, replacement pins of the correct steel are widely available (with a spring return, to boot), as are locking rollers, modified slide releases, extractors, mag floorplates, and springs (all). I believe Novak even does rear-sight jobs for the CZ52.
The other common issue with the guns I'm aware of is trigger slap. When fired, the slide moves back and smacks the disconnector down (but also to the back a bit), imparting shock through the trigger. It can also be caused when the slide closes, smacking the firing-pin safety release cam down, again imparting force to the trigger. Both are supposedly easy to cure with simple polishing and shaping, but I have not yet attempted to do so. Aside from the slap, which limits my endurance, the trigger is spongy but smooth, and a bit heavy. At 25yards, my CZ is as accurate as any of my guns that aren't my Five-seveN (not really saying much, though; 4" groups).
All in all, it's a fun, unique, and fascinating gun that really wasn't made in very high numbers. Moreover, the round has great potential, that I believe will be realized in the next couple of years. I keep hearing more and more people asking why modern guns aren't made in 7.62 tokarev. If you're lucky, the CZ52 will appreciate 50% in one year for you, too
TCB