I own three of the KISS knives, an original plain edge tanto, a Classic KISS (straight-edge clip point), and a Sampson's KISS (straight-edge spearpoint, larger size at 3").
I like these knives. They aren't necessarily the best for really precision cuts, because they are chisel-ground blades. But they are extremely sharp, and for general-type cutting serve quite well. My favorite of the three is the Sampson's KISS. Smooth operation, solidly built. DO NOT twist when using these knives, or you may accidentally unlock them and cut yourself, although it hasn't happened to me.
Jim