This apartment is in an excellent location - a short walk will take you to the old city centre or to great bars and cafes. The place is spacious, comfortable, nicely decorated and contains all the basics you might need. There are some very nice personal touches waiting for you when you arrive. Vienna was cold during our stay in December, but the heaters in the apartment easily keep it warm.
Check-in and check-out were easy, and Eva and Michael were very accommodating.
We were unable to give 5 stars as there were a couple of lapses of communication during our stay where we didn't receive responses to our messages. However the reviews below describe excellent communication from Eva and Michael, so our experience is likely an exception to the norm!