Review (3/5): You get what you pay for.
It does self stick, and doesn't fall down. Because of the materials it's made of, the mirror view itself is rather distorted and it does fog up. You have to wipe it down a few times per shower. For the price, it is something I can still use to apply my facial mask in the shower; but had I known of these issues beforehand, I probably would have paid more for a higher quality item.