Stacks is located in the heart of Hayes Valley, not far from City Hall and the hub of San Francisco's music, ballet, and opera delights. I had breakfast there recently and it was a totally All American treat. The place was lively with others who were defying the advice of their doctors to enjoy pancakes and omelets and sausages and.... Well, you get the idea. It was great. I enjoyed every bite. Great breakfast, fair price, fast service - just what you would expect and just what I enjoyed. The next day I went "on the wagon" and returned to my diet of whole grain muffins and fruit in very limited amounts. However, for one morning I was in breakfast paradise. The serve lunch too. I imagine it's just as satisfying. Go for it! You can always take a really long walk afterwards and try to believe as if you have burned the calories off.