I really liked the idea of this little PC Monitor mirror to see who is 'lurking behind me'. Product quality is however a little questionable although at such a low price I suppose you can't expect too much. The mirror fell off the monitor within 1 hour of putting it up and when I tried to fix it back again, the plastic (glass) broke away at the side.
Initially thought it was 'kaputt' but managed to get it back in place & it hasn't fallen off again so far(nearly day and a half later) - but not sure how durable it will prove to be though. That said, I still like it for novelty value in the office and it's definitely a talking point.