I will say it can help and it can hurt. I personally rarely use a decoy any longer. It seems like one of two things happen. Either the decoy spooks or halts the coyotes progress coming to the call or the opposite, they come in so fast, you better have a shotgun. If you are a shotgun caller, it might be just what you are looking for. I think you will get a range of comments on this subject. A coyote has to see the decoy to work. If you have a consistent issue with coyotes not finishing or you have a real lack of cover and are worried about your concealment, give it a try. Some folks use a simple feather on a stick. However, if you have a FoxPro caller that allows a decoy, then I would go with that as you can use your remote to trigger it. This would allow you to activate it when you need it versus every time or having it on continuously.