The Science Diet was ok, but Honeybun had a hard time eating it because it's so round and hard. The Royal Canin is a nice flat kibble and he can crunch it up easier. If not for Boris and Sophie throwing up, it would be a good food for the Honeybun. I've tried Nutro, but when they changed the formula, they started throwing that up too. It just seems like Sophie and Boris throw up so many of the foods, and I'm running out of options for them.