Every dog I have had was on Purina from Puppy Chow to Dog Chow. Never had a bad vet check up or stool problem (until they got older, of course).

Yes, I have read the reviews on dog foods. I can find reviews right now praising Purina and reviews that basically say if you feed Purina you don't love your dog, reviews that praise the expensive brands and reviews that say the vets get a kickback for selling and recommending them.

As stated above, do what works for your dog and for you.