Review (5/5): Inexpensive and works well
I bought this item back in January and it's been working well 10 months later. I initially bought this because of the hook - I lived in an apartment where suction cups wouldn't stick well on the bathtub walls - and I was looking for something fairly cheap. Provided that you follow the instructions (run hot water through the front and back of the mirror for 3 seconds) then it works just fine. After awhile, it could fog up again but that's to be expected - just run the water through and it's back to working well. I haven't tried traveling with it but it's very lightweight and seems fairly sturdy given that I've dropped it a few times. If you're looking for a relatively cheap option then this might work well for you too.
Update, 12/11/12
Thought I'd give a quick update on things. I've dropped this mirror a countless number of times and it's not chipped or broken. I've tossed the mirror in my belonging for several moves and have taken it for a few trips with no problem.