I think its a question of choice and what you believe is best for your little ones...mine are doing great on the RC and their coats look fantastic....but thats just mine. I have a friend with 4 moggies and they get whiskas complete and honestly her cats look every bit as healthy as mine and my friend has more change in her pocket! Its a question of whats best for you and there is no right or wrong but thats just my own humble opinion. I only give RC as that is what my breeders have all given.