We had a wonderful stay at the apartment. Huge space, including a pool table (!), along with a Nespresso machine and other nice amenities. The location cannot be beat, as the Karlsplatz metro (U1, U4) is literally steps away from the front door, and one of the main tram lines passes by on Karntner Ring. Tons of great restaurants and shopping within 5-10min walk or less, with numerous museums and other sightseeing close by. We would happily stay here again on our next trip to Vienna!