I got my T97 in 2013 (with the FTU mod), and have run thousands and thousands of rounds through it, including steel core, and it's been solid. Only recently did it slam fire on me, which kind of scared me, but I took it apart again and did a complete cleaning of it, and it hasn't happened since. It's also more accurate than my Tavor.
Now, a slamfire doesn't necessarily mean bad quality. Even the SKS slamfires for some people. But the T97 has been a rock so far. When I pull the trigger, it always goes bang.
I ended up selling my Type81 (I already had an SKS firing the same caliber, with nearly the same accuracy, which I just enjoyed shooting more). The Type81 was also a solid rifle. IMHO, it's personal preference. Do you want a bullpup, or do you want a traditional mag fed sporting rifle? Both are solid, even though they're Norinco..