PROs
- nice and clean apartment
- AC works well
- Christian is communicative and helpful
- great location! You can walk to many places and both trams and metro are nearby to connect you with further sights.
CONs
- we had trouble with the door lock, it kept blinking red, and it took us long time to get into the apartment (it was at night).
Luckily we got in at the end and once Christian realized the following morning what happened, he was very communicative and helpful. So we were probably unlucky with the lock, other than that it's a great place to stay for few nights exploring Vienna!