The TT-33 was one of my first pistols, but I didn't have it long and ended up selling it.
The grip is pretty small on this pistol, it gave me hammer bite, the trigger pull was heavy, and overall it was a bit rough. I think the pistol was a refurb so maybe after 1000 round it would have softened up a bit as the parts wore in a bit better. The ammunition is cheap, but depending on the source it may not be all that reliable. The Czech surplus I had sometimes didn't go off without cocking the hammer and firing it again. This may not be a problem with Norinco ammunition.
I think the biggest problem with the TT-33 is that it can't really grow with you. The hammer/trigger module is pretty tiny and it has a lot of fine and small parts making it a challenge to smith and reassemble correctly. So you're kind of stuck with the trigger it has. The lack of an external safety and the low power factor of the ammunition make it unusable for most shooting sports like IDPA and IPSC (if you ever want to try an action shooting sport then you would likely have to buy another gun). There are very few, if any, aftermarket parts. So if you grow as a marksman and want to improve aspects of the pistol you're pretty much out of luck.
Ammunition is pretty cheap, but you pretty much have to buy it in bulk. If you decide the pistol isn't for you then you have to find a buyer for the ammo too. Ammo is often a tough sell sometimes.
The TT-33 is kind of an acquired taste; it's mostly for the kind of guy who likes archaic firearms from ages past, like surplus collectors. You know, people who have a poster like this on the wall of their man cave (myself included):
Here's a coupe of alternatives for you to consider:
A used Norinco pistol copy of a m1911, SIG, or CZ chambered in 9mm:
You can find a decent Norinco pistol on the gun boards here for $300, which isn't too much more expensive than a TT-33 purchased from a store. All of these guns are clones, which means if you love the gun you can move up to the real thing in the future and have a 99% certainty that you'll like the real thing even more.
9mm isn't as cheap as 7.62 Tok, but you can buy it in smaller batches than 1200 rounds in one shot. 9mm is easy to find reloading components for if you decide to reload later on, I'm doing that right now with brass I collected 10 years ago. BTW - brass for 9mm is free for the taking. If you are absolutely stuck on 7.62 Tok then you can buy the Nornico P226 copy chambered in 7.62 tok.
All of the above guns can be upgraded with grips, sights, magazines, trigger springs, and a plethora of other parts. Holsters are common and easy to find.
They maintain a decent re-sale value.
All of the clones can be used in action shooting sports.
A used 22 pistol:
You can find an older 22 pistol or revolver for $250 that's still in good shootable condition:
https://www.canadiangunnutz.com/forum/showthread.php/1695877-High-Standard-Supermatic-Heavy-ported-BBL-with-weights-model-101
22 Rimfire is cheap and plentiful.
22 pistols are perfect for learners, for obvious reasons.
Most 22 handguns have excellent sights and excellent triggers.
You can shoot 22 rimfire at rimfire only ranges - this keeps the noisy riff raff off your back

You may never sell your 22 handgun, most people keep one around for the kids, or friends, and are quite popular with the ladies.