I've been using Canidae for my puppy for a little over 2 weeks now and the results are good. I was feeding her Nutro Ultra Large Breed Puppy, but she was pooping 6 times a day and in large quanity! Now on Canidae she's only going about 3-4 times a day and stool volume is much less. Only thing I don't like is her stool is softer then I'd like it be (it's not loose but it's not hard.)
She also loves the taste, eats it all in just a few minutes.
Overall good food, I'd recommend it.