We feed all our dogs Nutrience - dogs love it - hubby loves it (nice firm stools!)
We actually place breeder orders direct with Nutrience and pay breeders price (you have to order 2 bags at a time and they can be delivered to your local pet store.)
They have a website (www.nutrience.com or www.nutrience.com/australia/) which will give you more info re history, benefits, etc
I'd certainly recommend it!