A thread with the same question was posted a few days ago, let me copy and paste my post from there on here,
I've had a Manix 2 FFG G10 (S30V) for quite a while now, I purchased it off a member here on the forums originally with the older clear plastic-cage. I have never owned a knife that formed so well into my hand, it feels like it was custom molded for me, and I also have never owned a knife that opened so buttery-smooth (thanks to that polished ball bearing) I find no need to lubricate it.
Let me tell you, this knife can tackle pretty much any non-destructive work you throw at it, no matter what I did, the lock-up remained solid with no blade-play whatsoever.
Then one day....I went to the fridge at night to cut some celery, I pulled out my Manix and I swear, as soon as the blade started cutting into the celery, I heard a snap inside the knife. Turned out the clear plastic cage stem snapped. I sent it back to CO and waited around 6 weeks for it to come back to my door, now with the updated black-cage.
It came back stiff, but after some tweaking, some loctite, and some RemOil, this knife is working better than it used to. I can safely say that my Manix 2 has outperformed my Paramilitary 2, which has developed blade play and very stiff opening from regular use.
You will love the Manix 2
Here is my past thread about the celery incident:
http://www.bladeforums.com/forums/sh...cutting-celery