I won't go into the woods without it....I was so thick headed for a year after my sister told me about hers, i hunted without it, just didn't feel the need, then i broke down, i now have 3, lol....I haven't spooked any deer with mine to my knowledge...maybe one day they'll associate humans with the smell, but it's still fairly new and i just don't think they've put it together yet...JMHO
A lil trick is when the pads get white, i mean white white, i like to pour some doe in heat on the pad and let that burn for awhile, or even put the bottle on it and set it out about 25-30 yds from ya......