It is a great quality razor but I wish that it would have been more clear that you CANNOT use pre-cut single-edged blades for this razor, else the lock mechanism won't lock. You must only use double-edged blades that you must fold in half and break into two. Something to do with the bends at the end of the blades. But for what it's worth, it's a great razor that helps me get the closest shave I've yet gotten.
Another negative point is because of the shape of the head, it is hard to shave tiny c...