I have my pup on it and its excellent. I put him on it at 5 1/2mths because of stories of excessive protein having detrimental affects on their skeletons. The amount he grew in the first 5 months on a regular food I saw no reason not to change him over. He has maybe grown maybe 1/2" at withers since then. I originally had him on Burns mini bites which I recommend without question for pups. Gives them good attention, less agression, no over activity.
Orijen though is super again theres been no change in his behaviour at all and as a foundation food its one of the best I have him on just above minimum for their feeding guidelines.
What would you like to know?