This apartment is in a nice location in general but it's absolutely perfect if you have an early flight or train. It is located steps from the CAT train to the airport and has multiple train and trolley stops. I felt safe walking to my train at 5 AM by myself as well. Very easy walking to all the major sights. St. Stephen's was maybe 10 minutes, Kunsthistoriches was 15. There is a shopping mall across the street that has a grocery store and some restaurants (although there are restaurants all around the area so no need to actually eat in the mall). The place itself is adorable. The decorations are perfect - not cluttery at all but really nice ambiance. Leah was extremely responsive with check-in times as we were driving across Austria to get to her place and had a few hiccups on the way so our arrival time kept changing. Her dad checked us in and he was wonderful. Gave great tips on where things were and what would be open late so we could find foood. Just a great experience overall!