We loved staying here, it is in a great area and very conveniently located for the city centre. We felt the neighbourhood was great to come back to in the evening and there were plenty of nice bars and restaurants to try out, so would highly recommend this place for a first visit to Vienna.
The apartment was modern - nicely laid out, warm and had a great shower / bathroom. So we were very happy with it.
As a word of warning, it wasn't the easiest to find - we arrived in the dark so that probably didnt help, and the apartment is on the fourth floor with a lot of stairs.
Overall - would definitely stay here