Review (5/5): This one works!
I've tried all versions of shower mirrors: the suction cups, chains, stick on hooks, etc. ... this one WORKS!
Placement: 3'x3' fiberglass shower stall. Mirror placed opposite wall of shower head.
Instructions: simple-basic. Prep surface as instructed. Install time...3 minutes.
In-use: It will bead up with shower spray. When you're ready to shave, just a quick bare hand wipe to clear.
Installed over two years ago... has not moved (fallen down)!
Is it crystal clear?.... no. You're in the shower! Not at the vanity. But it provides more than adequate visual reference to get the job done.
Did I mention it hasn't fallen down?
Definitely recommend.