I had very nice time in Vienna in Kiki's appartement! The flat has a lot of space and light, very cosy and super clean. The location is perfect, near to the tram and the metro station although I did almost all by foot: 20min walking to the very center of the city, and 5-10min from Naschmarkt. Kiki is very reactive and very nice, she answered all my question quickly. Vienna is an amazing city! I recommend it to everyone and especially by staying in this appartement!