I love Royal Canin. I feed my dog and all of my cats Royal Canin. I ended up switching my cats to the Royal Canin indoor formula as one of my kitties is very prone to UTI. Ever since switching, I have not had a problem, so have stuck with it for all of my animals. I worked at a vet hospital, and both vets agreed it's one of the best foods on the market. Of course, like the above poster mentioned, all dogs/breeds are different, but in general I have no complaints about Royal Canin. Very good food!