A friend of mine gave me a can a couple of years ago and i' ve tried it a few times with no luck. It doesn' t seem to scare the deer away though when i have used it with deer around me that i could see. They usually just stop and look towards me and move on or go back to doing whatever they were doing. I' ve never had any luck with rattling or scents either but i think it' s timing more so than anything else as i' m sure they all will work if the time is right. I have however had luck using a grunt tube and i' ve taken several good bucks while using one so i always have one hanging around my neck from day 1 until the last day of the season.