This is in the WRONG location on the map. I think it is in the same shopping center as a Ritz Carlton hotel because I may have run into this store accidentally after searching for it near the place it is located on HappyCow's map. Google maps seems to get really confused in China, so don't depend on it. This store is on Nanjing Road West, but the location on the map is somewhere totally different. The easiest way to find it is to search on Google maps for the Ritz Carlton hotel on Nanjing Road. You go down an escalator from the main floor of the plaza to get to the grocery store.
If you are looking for some typical western foods that you would miss in China (e.g. chocolate, drinks, etc.) this is a good place to go. A little overpriced, but fine.
Cons: Wrong location!