I had a very enjoyable and comfortable first stay in Vienna. The apartment was exactly as described and needed after spending a winter’s day exploring - the heating and shower were particularly efficient. It is very close to tram stops and can be easily found by taxi drivers and mini vans (for organised tours).
The only thing not included in the description is how amazing the host, Tanja, is. Since booking she was the friendliest and most sincere person to communicate with. Her level of service easily rivals that of high-end hotels. With changes to my flight schedules, she was happy to accommodate my arrival of 4am with no issue at all, for example.
This is a must stay for any traveller visiting Vienna and surrounding cities/countries.