Apartment was ideally located. A decent 15 mins walk to Naschmarket, a must visit. Was met by the housekeeper and checked in. Instruction sheet was up to date. Apartment was a nice quite area on the 4th floor. Apartment itself was nice and clean. Vienna Opera is 5 mins by taxi and would cost around Eur 10. No Uber in Austria but u can call taxi's to the apartment. Very prompt service and reliable. Would highly recommend the apartment..