I have a TU-90 that I bought used. The blue is 100%, shiny and deep, if a tad uneven. The cheap bakelite grips are cracked, but I already bought replacements. I like the curvy Tokagypt-style grips that came with it over the straight original-style Tokarev ones.
In about 500+ rounds of S&B and Yugo surplus 7.62x25mm, I haven't even had a hiccup. About 100 rounds through a 9mm barrel have been more problematic with frequent jams. I'm still working on it, and may modify the ejector. It's just a fun project, and I'm not worried about it.
It rattles a bit, like the 1911 it's based on, but like that gun it has a lot of charm. My friends like shooting it a lot, and prefer it over some of my newer guns.
Pros: great dependability with the bottle-necked 7.62 round, cheap surplus ammo, looks good, fun to shoot, impressive fireball. Oh, and the gun only cost $137 with 4 mags and seven boxes of ammo.
Cons: Middling accuracy, cheesy add-on safety, wouldn't carry cocked-n-locked.