If you like interior design, you'd be pretty much satisfied in this little austrian café. Fine…read morecakes (e.g. Sacher, Frankfurter Kranz), very delicous. And in case you are not looking for typical austrian flourfood (mehlspeisen), the hearty snacks have my recommendation as well. "Weisswurst und Brezn" with sweet mustard, as well as beef meatballs with salad for less than 7 euro in that kind of athmosphere, marvelous.
Drinks are sort of pricy, but for the location still affordable.