This knife came razor sharp out of the box. Even though it's on washers, it has great action. You'll have to break the button lock in (about 50-75 times should do it) before it'll close positively but that half the fun!
There's no blade play or lock rock and the ergonomics are neutral so this will fit most hands. This thing is a beast but it's beautiful to behold! Even though it has a lock, I haven't had occasion to use it. That button lock isn't going anywhere.