I just picked up my first China made Spyderco Tenacious last week and have to say it exceeded my expectations. There are some quality issues but nothing that would prohibit using it as any other Spyderco. The blade is just a bit off center, lock-up is at 75% or better, clip is way too tight and the finish on the clip is a little sloppy. But for a sub $40 knife it's really well built and after adjusting the clip it'll get some pocket time.
As far as the clip screws, they are actually larger and have more material on the Torx head than other Spydies so no worries about stripping. On the other hand the screws in the body are a little weak, or maybe I just got a fluke, but one head just popped right off when I was removing it. No big deal, I disassembled the knife and removed the rest of the screw and replaced it with another.
I would recommend this knife.