We stayed at Thomas' apt for 3 nts in Sept 2016. It could not have been better! The apartments located in only 200 yards from the Opera House on the 7th floor with elevator. There is covered parking at 22 Euros a day less than a block away. The apartment was huge with good Wi-Fi and a complete kitchen. You can search for a long time and never find a better apartment! We will definitely try to stay at Thomas's place the next time we are in Vienna...