I am a fan of Pet Remedy products and use a spray and plug in diffuser also. This diffuser has proved very useful as the room where our dog opts to spend most of his time doesnt have a convenient plug socket clear. It’s easy to use and I believe it helps him. A human member of the family says it helps their anxiety also. The only possible issue is that it squeaks quite loudy when it goes off. It made us all jump the first few times but doesnt bother us now. A particularly noise reactive animal may be spooked by it. Otherwise, I recommend this.