We went there on a Sunday morning in June.
Had seen it on TV before. Were not disappointed with the real thing. Friendly young ladies who looked good in their uniforms. Good service. Burgers weren't bad. The have a large condiment bar where you can add good things like tomatoes, pickles, onions, jalapenos. Just can't understand why they don't have milkshakes -- wouldn't milkshakes be more conducive to heart attacks than Coke? They also have beer and wine.
We would visit again if we ever get back to the Phoenix area.