My stay at Tseka apartment was perfect. It is located in a quite neighbour very close to all attractions in Vienna, infact you can reach every place by walking and getting in Stephansplatz in maximum 20 mins walking. It is very comfortable for who is coming by train as there is a direct connection by tram D (just 20 mins) and the stop is just 100 metres from the flat.
Moreover you can find everything you need in the proximities: BILLA supermarket, ethnic and typical restaurants as well as very good places where to have breakfast and chilling.
Tseka and Tamara have been helpful all the time and very flexible with the check-in as well (my train was delayed of 2 hours and I arrived at the apartment quite late).
I Would totally recommend this flat to everyone who wants to enjoy Vienna and looking forward to coming back!