The main reason I shop here is for the Seafood Center so my review is mostly geared toward there.
That said, they do carry a few products that I love and it's a much nicer environment then Whole Foods. I did spur of the moment sign up to be a part of the co-op when I found a product that had been discontinued elsewhere. I knew absolutely nothing about co-ops other than their media portrayal. The nice person at the desk was more than happy to explain everything. My limited experience with the staff has been amazing. Unfortunately most products are higher priced than I'm used to so I have to drop a star.
The Seafood Center, on the other hand, is 100% a 5 star. It's just as amazing as the west side one, but significantly less busy. The person I always work with at night is above and beyond helpful. The Seafood Center seriously has the best fish I've gotten since I lived on the coast. They are more expensive than some places, but I feel as though fish and seafood quality is just as important as cheese quality. It's flat out worth the extra. If I remember correctly, Whole Foods is actually more expensive and the quality is far worse. If you're looking for a great place to get seafood take a shot and come here. You won't regret it.