Ive used it before and i would deffinently say its worth the couple of bucks. You Do increase the amount of coon on your feeders but, as for how it works... I think is has something to do with Nicotine or some kind of tobacco flavoring... If you've ever smelt some Hooka tobacco, its the only thing i could come up with.. you figure "get em hooked on Nicotine, Of course they'll come back!"
JMO... which isn't worth much