Have a Civivi Elementum 3in blade with D2 as my daily carry. Thin in the pocket, flipper like greased ball bearings and fits the hand nice. D2 seems good with sharpening and edge retention but I am not overly impressed with the corrosion resistance. After a few weeks I got specks of rust on the blade.
Tried a knife with 14C28N and IMHO it's a step up. Same qualities as D2 but much better corrosion resistance. Very easy to sharpen, I think and holds the edge quite well. The knife was a cheap $18 Amazon job but I was not interested in the knife only the steel.
Wish Civivi would put that steel in an Elementum at the 3in blade size as I think that is about perfect for pocket carry