This has calmed my two teenage sibling cats down. Much less aggression than previously. Would reccommend.
Having bought the starter kit, to see if the statements made by Feliway lived up to the reality - I can recommend this product if you have kittens that seem to be always fighting. No longer!! I am now on my refill, and will be continuring use of this great product.
This definitely seems to do the job it's meant to do and has a calming effect on my 2 cats.