I use it only on my boots and only applied in certain scenarios...typically when I believe my path in will or has a chance of being crossed by a deer.
Some stands I slip in and out of and want the least amount of intrusive (scent included).
I have had mature does follow the trail, cross it, smell it and carry on multiple times. To this day I've only killed one mature buck that smelled it directly. I've had a few others not smell it or so it seemed...but direct interaction with it on a boot trail only one mature 4 1/2 year old or older have I witnessed.
Many yearling bucks and even a couple really nice solid 2 1/2s.