I've used it before - it's by the same people that make Diamond, Kirkland, Chicken Soup, etc. Jes did fine on it, it's just that his stools weren't quite as firm on that food as they are on Eagle Pack - and living in an apartment where you have to pick up after your dog every time, that's actually an important thing.
I was going to mention the same thing Nick said -- that the formula is similar to "Diamond Naturals," Kirkland, Chicken Soup for the Dog Lover's ....., Premium Edge, etc., because all are made by the Schell & Kampeter company.
I feed Kirkland C&R and like it.
Puff [YF, AKC field line (from competing HT/FT breeder) 62 lbs, dob: 8-'01]