Stepping in for a quick question

What are your thoughts on Maximum?

I'm the type of person that reads the ingredients before I even consider buying the food for my dogs. I went through three entire aisle's of dog food in Petsmart looking at ingredients of over 20 different brands before choosing about 10 brands to further investigate.

Then I happen to walk into Walmart and see Maximum. It has no corn and no by products in it. The affordable price is what makes me wonder if it is a high quality food (about $14-$15 for a 20lb bag, whereas I was paying $25 for a 20lb bag of Chicken Soup).