This has made my loving cat and dog into loving happy and friendly even though they were before somehow they seem to want to interact with us and cuddle more and seem content which I also believed they were but more so after this plug in has been in our wall. The initial purchase was for my nervous small dog that we hoped would help her cope with guyfawks night. I’m sure it never completely eliminated her fear as she hid under the bed as always bit I think she wasn’t so besides herself as she didn’t shake and tremble for hours as she is known to at times shes nervous. I have continued to use the plug in after fireworks because of the change in their content happy state is positive and I have began to leave my dog alone in the daytime which is all new to her. I believe it helps to calm them and does make them better behaved. I wasn’t sure after reading other reviews and the price what it was but it lasts for quite a while, so is good value taking this into account. Also it works on cats and dogs for me this means one product for two pets not all plug in and products similar to this are aimed at tackling more than one type of pet. Just to add I was concerned that it might be relaxing them and also making them high or numb or sleepy to have this calming affect when I hadnt used this before. In no way did my pets seem out of character or ‘out of it ‘ or not their normal coherent selves . It doesn’t stop fear or anxiety but I think it does help them to a degree so it is worth trying out on your own pet as they aren’t all the same . I will purchase it again for my pets.