I try and avoid Vons at all costs because of their prices. I feel that if you don't have the rewards card, you are over-paying by a ton. In fact even if you have the card, I never feel like the item is on sale.
The plus is that the store is clean and the staff is friendly. However this is not a sit down restaurant so I care more about pricing for goods I get get anywhere else, more than a friendly cashier.