I've tried the critters and call mounted decors on icotec, foxpro, and lucky duck calls. When they work, they are awesome. I've seen it cause coyotes to hit the afterburners, then nothing will stop them until they run it over. I’ve seen it cause them to lay down 300+ yards away and just watch. They are all different, and their responses are different. I think if they are coming to prey distress, and you can put it somewhere that they can't see it clearly from a half mile out, it can be useful, but sometimes it won't. I honestly haven't run one in at least 4 years.