All of my dogs eat Proplan.
I have fed many higher priced foods. I did Diamond Naturals for a little while and I was unhappy, my black dog turned Orange. I did grain free and I had dogs vomiting between meals and eating grass in the yard like cattle. Then my dane started to have alarming twisting and weak pasterns while eating grain free and growing.
I use Proplan Shredded Blend and I use the Limited Ingredient Proplan. I have one dog who only eats the shreds. LOL. She picks them out of her bowl like candy and will not eat the rest.
My dogs look fantastic.
This dog (below) has eaten Proplan his entire life. He was started off with ground proplan puppy and eats it now twice a day.
He is a true athlete.
Also, the company is pretty good too. I cannot complain. They have handled any problem even if it was not their fault. Our local Petsmart got infested with those pantry moths and I had 2 bags of food infested with worms and webs. The night before a dog show I ran down and returned one bag full of bugs at Petsmart, and they gave me another, I got home and it was full of bugs. I was leaving out of town to go to a dogshow. I left for the show and I talk to Purina about my Petsmart problem with their food and she promptly gave me 24lbs of Limited Ingredient for free.