Nice little apartment, exactly as advertised.
Fantastic location for getting around the city, whether on foot (St. Stephen's Cathedral, Hofburg, Parliament, Rathaus, Graben Street, Opera House etc.), or with excellent public transport (for example, U4 will take you both to Schonbrunn and its beautiful palace and Zoo and/or Grelle Forelle, depending on your personal preference), and for taking a necessary break once in a while.
You can also expect total privacy, which is very nice if you're into it.

The city itself is, of course, superb, I feel I could easily spend a couple of weeks there and always be in a position where I would be able to see or experience something new. I intend to return, and I've already been here. Superb experience.