For someone who encountered the master lock for the first time instructions were incomplete and we spent about 20 minutes trying to get to the key.
Wifi worked well only in the kitchen.
Coffee mugs and glasses were very dirty, dust and coffee stains all over. The kettle was not usable, it's covered with rust and limescale.
The place had a weird and felt kinda humid.
It's furder from the city center then we expected, you need two lines to get to the city center(Maria-Teresien Platz for example).
All and all we wouldn't recommend you staining here.