Very cool flat in a wonderful part of town. The neighborhood was full of awesome galleries, bars, and restaurants. It was a great area to explore in addition to all of the most touristy areas of Vienna. The communal areas of this place are beautiful. The modern kitchen, wall of windows, exposed brick, and concrete floors are incredibly cool and stylish. The bedrooms and bathroom are much more utilitarian--basic mattresses and bedding, and a bath that feels like the only non-renovated room in the place.
I would say, if someone plans on sleeping in the second bedroom, they should bring ear plugs. It was consistently loud throughout the night from the street noise. Even as someone typically not too affected by noise at night, I debated moving to the couch on our second night to get sounder sleep.
Outside of the street noise--something that was beyond our host's control--this was a great place to stay. Communication and hand-off of the keys with the team was friendly and easy to coordinate. Would for sure consider staying here again when I come back to Vienna!