Our 2 dogs do very well on Pro plan.  I've been switching around to find a food they both do well on (one has skin allergies) and Pro Plan seems to agree with them.  No more scratching, good digestion, they look good in every way  and they enjoy eating it.  It is AAFCO tested and looks to be a very popular food(its not sitting on the shelf for long).  We're all happy with Pro Plan.