I'm an old fart who has a history of not particularly liking imported cutlery or current modern gimmickry. I do like the industrial look of frame lock knives. So I bought both a Cryo and Cryo II recently. Both are solid knives. Perfect fit, blades perfectly centered, no blade play, screws tight and the AO (which I really don't have much use for) works smoothly. I agree, the thumb studs are useless but for low-priced Chinese knives, they won me over. I do wish the Cryo was a half inch longer in the grip but I can live with it because I like the blade width and shorter blade length. I'll probably spring for a G-10 when I find one cheap enough.
Kershaw has a super warranty. If you got a bad sample that you didn't mess up yourself, Kershaw will make it right.