I've got the Alpha Wolf in D2 and love the design and feel of the knife. The material and workmanship are solid. The jury is still out for me on D2, as I find it harder to sharpen to that spooky sharp level (I can get it to shave but not just "pop hair.") than other carbon steel like the 1095, Carbon V and the Scandi carbons I've owned. KOA also made some knives in the S30V steel. I've got an Alpha Wolf in the S30V but it is lost some where in my brother-in-law's gear depot. I was not crazy about the sharpening qualities of that knife either. I just hope it will turn up some day when he is looking for a knife

. I'd love it if the Alpha Wolf came in a 1095.
I've also got a KOA Pronghorn Hunter in D2. The quality also seems first rate on it, though I don't like the style nearly as much as the Alpha Wolf. It was a gift.
Remember that the D2 is a carbon steel and will rust. My Wolf has some character marks from where my brother didn't get it cleaned and dry good after some wild hog processing.
Good luck.