I just wanted to add that I got a free bag of this and am trying Lexi on it. A new Petco opened near us, so DH and I went to check it out, and all the food reps were there from Blue, and a few other higher-end foods the Petco carries. The Blue rep. was extremely nice, knowledgeable, and not pushy. As a company that inspires confidence from me so we are testing out the food. 

As an aside: I usually have to drive an hour to get decent dog food (at least from a store that doesn't sell puppies), so a Petco carrying foods I can feed is really exciting!