Our stay at Harry’s place was great! The apartment itself is very nice with an amazing roof deck. Check-in was smooth and I didn’t feel the need to contact Harry about anything else during our stay. This place can fit a lot of people as most rooms have multiple beds. The heated towel racks in the bathrooms were a nice touch. Keep in mind it is a very open space so if you are in the upstairs bathroom you can hear a lot of what is going on downstairs.
One thing I would mention is that the nearby stores/markets are closed on Sundays - we found out the hard way when we ran out of toiletries. This place didn’t seem to have any binder of local information or instructions on anything in the apartment, but we were able to figure most of it out.
The location is great - we found many local bars and restaurants that we went to multiple times. Go to Kolar and Schachtelwirt! We would definitely stay here again if in Vienna!