I find these knives (I think I have 3, but not the Nitecore one) too small and flimsy to be of any use (they feel unsafe and are really hard to hold). There are slightly larger ones that are much better, but seriously a Vic Classic is the better choice.
As for the lights, they are great. I like especially that you can use many of the most recent models while charging, so you can hook them up to a powerbank and have a tiny keychain light run forever.