These blades are differently sharp it makes shaving much nicer but tricky to use. I use a Rockwell 6s razor in number 4 setting currently. With these blades it shaves nice, I get some irritation from them but nothing after shave stops. However if you are not careful they will cut you quick. It could just be me mostly likely. But I tend to get cut easily on my neck and around my chin more then other blades i tired so far. I switch to using Gillette platinum and find I don’t cut myself as much often where they are a tad duller then feather.

I have sensitive skin so what I look for in a blade is a combination of sharpness and smoothness. For me this blade is one of the sharpest blades I've ever used but when it comes to smoothness it's like shaving with a chainsaw.

Wonderfully sharp blades. super smooth shave. Great blades.

smooth and close shave. Would strongly recommend.