I have it installed and played around with it the last time I went to the range and was waiting for a lane to open up. I didn't use it for my own shots but I was impressed how well it registered and how well the sensitivity adjustment seemed to work. I was about 25 feet behind the firing line and it was counting every shot I heard with the sensitivity set all the way up. I can't imagine you could adjust it to only pick up your gun and not someone next to you shooting though.