Pros- Harry was very friendly in his communication. The apartment has super comfortable beds in large and spacious bedrooms, one had a desk in it which was good for our of our group members to study. The living area was also huge with a great big TV and couch - we managed to livestream the Wiener Staatsballet which was fabulous :) Great bathroom with super shower and the washing machine was very welcome. The kitchen was small but useable. The position of the apartment was excellent with easy access to the metro and to the Hauptbahnhof (main train station) and a supermarket just on the corner.
Cons - having no bowls in the kitchen was a little inconvenient for breakfasts, also only one set of keys for our group of 5 was a bit inconvenient.
All up I would definitely recommend the apartment.