D2 is not the best steel for a large fixed blade knife, its best usage is in smaller blades, that being said, it is not terrible, it will hold an edge better than a stainless blade.
the problem is that hardness roughly equates with being brittle, Chris Reeve uses A2 wich is not as hard as D2, but is a less brittle steel, so it is less prone to catastrophic failure
but i would prolly buy the D2 blade, since i cannot afford a CR