Like most of these stores, getting exactly what you need on your grocery list is kind of a crapshoot. They never have exactly the same items, and busy days after the flier comes out are the worst.
Still, you can pick up some awesome canned goods and produce if you're there at the right times. For example: they usually have .59 cent canned sardines here. You can class up the homemade Caesar salad with those and look real hardcore gourmet. They also regularly have hearts of palm and bamboo shoots, really any sort of canned food that is 'ethnic' and hence Vons will charge you three dollars for it.
We've eaten a lot of fresh produce from this store. Well, you get what you pay for, that's what, especially the tomatoes. The avacados and asparagus - surprisingly good though.
Also, throwing a party? Need cheap bar glasses or plates? This store has a big selection. Buy some and then you won't have to look bad when none of your stuff matches, but if the guest breaks it, well who cares you only spent a dollar.
Just don't count on them to have the sardines for the salad the day of the party. That is not how this works.