The iconic HD2 knives by Konosuke are well known for being laser thin and razor sharp and the mid-sized gyuto here is an incredible knife in every respect.
HD2 is a mono steel and for those familiar with the GS+ (a 3 layer steel) the comparison between the two is that these are a little less stainless the the GS+ but will hold an edge for longer, this is due to having more chromium in the steel.