Sorry for the tardy response to your question David. I used a blade for a week a few months ago and then used one last week. I would compare them to Shark Super Stainless and Shark Super Chrome blades. I found them to be sharpish but a little on the harsh side for me. I did get my usual 7 day’s worth of shaves out of the blade. They did smooth out towards the end.Interested to hear your review, and what blades you are comparing them against