polo blue is a mediocre scent... the top notes smell pretty nice but the rest of the fragrance leaves me wanting more. after the initial "piney", fresh notes burn off (rather quickly) all i am left with is a very generic and shallow base. there is not much depth i feel, and the longevity is subpar. i would take black XS over this in a heartbeat.
on the otherhand, if you are still drawn to the scent and can get a REALLY good deal on it it may be worth while. personally, i'd spend my money on something else with more personality (and that is better constructed).