And if you try to go over the same area in different directions to get them all, you slice up your face because these blades don't flex, and they're perfectly straight, so they take more and more skin off areas already shaved as you try to reach the uncut ones.
I detest still feeling and seeing hairs after shaving and this type left visible hairs every time so I looked like I shaved yesterday not 10 minutes ago. I owned this type for years and the reality is cartridges have thinner flexible blades so they cut hairs closer.