Having tried 5 or 6 other blades I can't beat Feathers. If I'm miserly I go for 4 shaves in my Merkur 38C barber pole razor. I have two shaves, flip the blade and then another two shaves. As I shave my tough bluebeard only 5 times a week (average of every other day), one blade gets me through a week with excellent close results and I could probably milk it for more but at .40¢ a blade AUD I can live with that expense. I was blowing through a Mach3 every week at the same rate, even with trying to sharpen it by rubbing it with the grain on denim and the cost was 10 times that.