The vet recommended this to me as a cheaper alternative to feliway. My cat suffered badly with urine infection and had to be hospitalised a few times due to his bladder blocking. He is now on the food for urinary care dry is best for him. We put the plug in first and straight away we noticed a change in him. He’s now so calm now and he’s being more interactive and coming for fusses. He was a rescue cat with issues but now he’s a member of the family. We will keep using the plug in for his life which I hope is long and happy. Highly recommended this plug in to others.