I don't care what brand, what price, who the designer de jour is when it comes to folders, if you are a user and not a collector, the lock, any and every lock, will eventually fail; and when I say user, I don't mean using your big azz Strider at work cutting cardboard, twine, and tape. For me, all my folders that see regular use and in a pinch go from simply cutting open a taped box, all the way up to slicing meat, veggies, and fruit when I'm on the road, or in a backyard BBQ...anything more intense would and should require a fixed blade. There's a reason you don't see a folding bayonet affixed to a rifle.
This post will most assuredly bring out the haters.