Im my opinion its very durable, I have a knife I made with that and the same knife with a powder coat. the powder coat seemed to be slightly more impact resistent. but overall the KG was much more impessive, the hardness and abrassion resistence was much better in the KG. the KG in my opinion is close to the same wear resistence as the coating on my spyderco military, which is a DLC coating. The DLC coating on my spyderco has held up for years, unforutately I dont carry a coated fixed blade to show you the long term durability.
-Josiah