A bing sutt is a type of Hong Kong cafe/diner popularized around 1950 to 1970, highlighting the convergence of East and West. They exist to this day, though in lesser numbers, and have traditionally served Hong Kong versions of Western comfort food as well as iced drinks, coffee, and tea.
The look of the bing sutt is very reminiscent of a '60s greasy spoon diner in decor, but with the odd Chinese touch here and there, and of course, Chinese lettering instead of English.
Here's a closer look at the split between vanilla Starbucks and Hong Kong retro. Notice how the window faces a brick wall and a neon sign; Hong Kong is quite crowed with many high rises.
There's a menu unique to the Duddell St. Starbucks with popular and traditional Hong Kong food items such as sweet soups and Hong Kong pastries. Basically, these items wouldn't be out of place in 1950s Hong Kong, except some of them come with a Starbucks twist. Take a look:
Cocktail Bun - the twist here is that coffee is added to the filling. Otherwise it's a soft sweet bread bun. The more traditional standard is for the filling to be made with ground up old bread mixed with coconut and sugar.