First of all I want to emphasize that we have greatly enjoyed our stay in Vienna in the apartment of Eva und Michael. It was the latter who gave us a kind welcome. The apartment is located next to the historic center and with multiple transport connections which allows you to quickly reach points of tourist interest. It is also very comfortable, and neat. Without hesitation I would stay there again. The wifi works efficiently as everything else. Michael is very attentive and always aware of our concerns. Finally, I recommend you to stay with them in Vienna.