
Many people, myself included will in large part judge a brand of food on what comes out the other end. You so have to wait a week perhaps to form a reliable opinion, as it can take that long for the dogs didgestion to get used to the new food.
A dogs poo ought to be firm, and of fairly low odour, and should roll onto a shovel, rather than require to be scraped up.
If a dog has persistently soft and foul smelling motions, then I won't feed the food.
The premium brands of food that have meat as the main/first ingredient tend to produce smaller, darker and firmer stools.