The apartment is extremely comfortable with everything you could want. The location is great - just a 10 min walk into the inner ring but right outside the entrance to belvedere gardens which is great to run around in the mornings. If you weren't up to walking, the trams pass by at the end of the street. Caroline and martin's recommendations for cafés, touristy places and restaurants were all well worth it. Caroline is very accommodating and helped with concert tickets and the like. I would definitely recommend his place to friends wanting to stay in vienna for a few days.