Dont have experience with it personally. It is on the 1 star rating list tho. What works for one pup isnt the same for another, funny huh? I have heard that you should try and get the pups on at least a 3 star food for good health and nutrition. BUT then again we grew up in the world of purina and thought kibbles and bits were a great luxury for the pups we had and they all survived. haha Have heard the comparison that the low grade foods are more like feeding McDonalds compared to good healthy food.