Instruct: Classify an Amazon review as either positive or negative.
Query: great product, great company

we've been using [6] of these for several years now, they work great....remember to change the cotton balls in the top several times per season, depending on how much soaking rain you get, and also remember to add extra acorn scent that comes with the set several times per season, maybe once per week...the company is very thoughtful and helpful; i just called them to tell them that i misplaced the bottle of acorn scent; they're sending me out a few bottles free of charge!...awesome!......