We feed Grumpy the Nature's Variety premade raw patties, I'm still learning and experimenting with doing my own raw

Grumpy ate Natural Balance for a while and did fairly well on it, but she was eating it when the Venison and Rice formula was contaminated with melamine (during that huge run of recalls) and she got soooo sick :( Her kidney function was elevated, she was vomiting, drinking buckets of water a day, it was awful. She is fine now

no long term damage.
So I won't go back to Natural Balance. But, to be fair, so many foods were affected, and only a few NB products were. We were just unlucky enough to be feeding one that was.
Good luck with whatever you decide!