I would even go as far as saying that modern, hi-tech stainless steels (which often are made with PM process) will outperform on the edge holding side carbon steel we seen in kitchen knives. The reason for that is not with the carbon steels themselves, but because there is no comparable development of staining steels for knives as there is with stainless steels - at least in recent past decades. Still - edge holding of well heat treaded carbon steels is excellent and will last several months of home use. My super blue Masakage Koishi does.