Hi! I use the NB sweet potoato and fish and have had great sucess with it. A few months ago I had posted that I was having allergy problems w/my pups. They were on NB venison. They were scratching and chewing their feet like crazy! I had tons of great suggestions but decided to try the fish. Lucky for me, Benny and Emma's allergy problems have certainly been reduced. Minimal tear stains and minimal chewing/scratching.
Being Petco is so far from your house, have you considered buying your dog food online? I use
www.petfooddirect.com. If you sign up they almost always have a discount code and they sell Natural Balance along with a ton of other brands for treats too. Give it a shot...it may save you from the hour long drive to Petco.
Good luck with the new food!