I had a Kershaw Boa made back in like 2000/2001. That knife was made very well, what you'd think of a ZT now. Good steel (S60V), good lock, good ergos, and good grinds. That knife cost something like 120 bucks more or less. There's no reason the ZT branded knives should be costing double that now. Maybe 150-200 now, which is reasonable for what they are combined with inflation, but their tactic of producing these limited edition knives that SHOULD cost 200-300 for upwards of 500 is what made me turn away.
For what it's worth, I've had good experience with ZT's elmax as far as steels go, but nothing else, really, especially their limited editions, of which I've owned three of one model and one of another. I've also owned two models of their production line, one of which hit all passing scores. They were each very pretty and on paper everything was supposed to be top notch, but once in hand, only one or two features were actually useful and the rest of the knife made it uncarryable because of size or manufacturer defects or simply poorly designed blade geometry. I can see possibly buying another production model, but I've sworn off their limited edition offerings unless they drastically change their business model.
If you ask me about Kershaw before ZT was around, I would say I've only had good experiences, dating back to 2001.