The breakfast buffet was excellent and included many options. We ate outside at 'you' restaurant the night we arrived and the food, wine and service were all great. There is also an indoor champagne bar and restaurant. he staff were very friendly and helpful. We loved the location, close to the Karlsplatz U-bahn station, and you can walk to everywhere in the center of Vienna. Also close to lots of cafes, bars and restaurants. Would highly recommend.