Many dogs do great on Ole Roy too. The problem is long term health. I have talked to many a person who feed their dogs inexpensive dog food and I hear the same thing many times. I fed "Fluffy" this brand for 10 years, until I lost her to cancer. Now, ten years may sound like a long time, unless you are talking about a dog with a life expectancy of 13-15 years.
The better the food, the less the poo. The body utilizes more of the ingredients, leaving less waste to dispose of. When my girls are on a raw diet, they poo once a day. When they are on Canidae, once maybe twice a day. When they were eating crappy dog food, they were pooping 3 times a day. I am all for anything with less poo.