The flat is very well located, right in front of the metro and a small grocery shop very useful ! It is also close to the tram so you can reach the center of Vienna quickly. Thanks to the key box we can arrive at any time, it is perfect. Michael gave us nice restaurants addresses, thank you very much.
Just note, there is a big road right in front of the building so it's quite noisy but, for our part, we still slept well in the big bed ! We spent 3 beautiful days in Vienna :)