We have fed this to our pup for about a year now and we have been nothing but pleased with the results. Health checkups have always been excellent and he enjoys the food. Though every dog is different I will explain our personal experience with our Male Australian Cattle Dog.-First of all, the quantity of food. We usually went through about a bag every two months. Our pup was for the most part self feeding. We would put out the recommended portion given on the bag, and he would eat it throughout the day. He seemed to be filled up quickly by it and that was awesome because I feel it was hard for him to over eat. He digested it very well and had a very regular schedule.-He loved the food. For the first 4 months that we had him, we used nothing but the bits of dog food as incentive and treats for training. It was great because it was feeding him within his daily amount and it was portioned perfectly.-He is now 1 year old and is healthy, active, and strong. One thing that is super noticeable is that his fur is still incredibly smooth and soft despite him blowing his puppy coat. His nails are very strong and aren't brittle as well.-The only thing that could be considered a "con" is the pretty much ever present flatulence. This is a normal and expected effect of the digestion grain free diets. Though potent, we can live with it...Overall, I highly recommend this food. I have not tried the other flavors, however soon we will be transitioning to and adult diet and may experiment. I can vouch for the puppy formula 100%. Though expensive, you end up buying less and getting a whole lot more.