I stop there every week as one is on my way home from work! I am very lucky!
I save a ton on produce. The nuts are also very cheap, oils are cheap, I get my La tortillas there cheaper too, as well as a lot of my frozen fish. Canned beans, tomatoes, soy sauce.. etc. All cheaper than grocery store.
As long as you stay away from the premade stuff, which tastes good and can be healthy - but expensive, your budget should be okay.