This store is like the Costco (with no membership required) of supermarkets in some ways. No, you don't have to buy everything in bulk. No, you don't have to join any membership. But, yes credit cards are not accepted.
The wall of values when you first walk in has some good deals. I've gotten toothpaste there as well as Vlassic dill pickle spears. This store also has a large bulk foods selection (one of the largest I've seen). Can this be your everyday supermarket, no. Can you strategically shop for items you want here and end up saving money, yes.
Also, I would disagree with people who say that this store is in a bad neighborhood at night. While it's certainly not North Scottsdale or Ahwatukee, it's by no means a bad neighborhood.