3.0 out of 5 stars It kind of works but mostly its just ‘okay’ I might have to leave an updated review in the future in case anything changes, but for now its just 3 solid stars. That doesn’t mean that I regret buying it, quite the contrary. It just means that I wish it were stronger and more effective. Look, I get it…they have to be careful not to create a product that harms dogs and leaves themselves liable in case some knucklehead dog owner doesn’t use it properly and then tries to hold them responsible (why take accountability in reading instructions when you can simply blame someone else? welcome to America!!!)PROs:-It definitely made my dog wince a bit each time I sprayed it on his leash and even when I sprayed a little bit into his mouth. YES, you CAN spray into his mouth… that is EXACTLY what dog trainers recommend. They tell you to spray a little bit into your dog’s mouth so he understands that it tastes terrible, and then your dog needs to see you spraying it on the leash or area you want him to stop chewing. That way he will put two and two together and associate the horrible experience in his mouth with the area he should avoid. Ideally that will lead him to NOT chew on that area! (if only the world were that easy)- The bottle is pretty big. Much more solution then I expected!- The stuff does actually work a little bit…it made my dog take notice (but he did still bite on the leash while we trained him to get used to the new invisible dog fence we installed)CONs- not too many cons other than it needs to be a little more stronger for bigger dogs like my larger black lab. (maybe offer TWO versions? one for smaller dogs and one for bigger??? who knows)- its going to take repetition and practice to make this work. Dogs are stubborn and resilient…two characteristics that help them survive but also super frustrating to work with. You MUST make this process a daily routine to change your dog’s behavior. If you think this is just something where you can just spray a ton of it on an area and be done with it then you should not buy this. If your dog is chewing on something its a behavior that needs to stop and this is just one of the tools to help you in changing his behavior through repetition to instill a more desired behavior. (channeling my inner Cesar Milan here but its true)Hope this helps. Again, not a bad product at all. Just not yet deserving of more stars at this point…but I will edit if anything changes. PS. I actually caught a bunch of this in my own mouth while spraying it in the wind. WARNING: DON’T spray it in the wind!!! It tastes effing HORRIBLE!!!! So if you are trying to train a human…this is MORE than strong enough. 207 people found this helpful