Yeah, i think the blades are fantastic! Ive used these and shavekit and think these are superior. And the handle is really premium. Has a lovely weight to it.
They got 5 star reviews. Most people love the blades. :) https://uk.trustpilot.com/review/cornerstone.co.uk
Poor razor in my experience. Like the idea and look of it , but not impressed with the blades.