In my experience, Nacets are nearly as sharp as Fearhers, and much smoother. And Nacets last a lot longer. But this is only my opinion. YMMV.I have more limited experience with blades. I've done a few sampler packs. Part of the problem is that my technique can be a bit wobbly. Anyway, point is, I've heard a lot about Nacet and I picked a sampler pack that has them (it hasn't been ordered yet, trying to make my mind up on what soaps I want). I've used Feathers a lot, but not as my main go to, because they can be a bit harsh if I'm not extra careful, so save them for slow leisurely shaves, not 'run to get out the door'. I was wondering if you could just mention a comparison of the shave between the two? I've found Feathers don't last long, so glad to know it isn't just me.