My experience is with a jumpmaster serrated I modded to plain edge, an aqua salt that I did the same to, and a Schempp Rock. I found H1 steel very tough when I tested the toughness of an Aqua Salt, alongside 8Cr13MoV, 1095, and SR101. All four of these were tested by batoning through a nail. As I recall (this was over a year ago) the only one that did not cut the nail in half was the 8Cr13MoV (byrd rescue), which received the most damage, a nice big roll. 1095 (pakistani blank) and SR101 (Ratmandu) cut the nail in half, and had minor damage, with noticeable light reflecting from the blade. They sharpened out easily enough. H1 cut the nail in half, and had such minor damage that it was at first not visible to me, and I had to use the finger nail test to find it. Very impressive. Otherwise, I agree, it cannot rust, it scratches very easily, it takes an amazingly sharp edge easily, loses it quickly, but gains it back even more quickly.