The place is an old refurbished office turned into a mini hotel. You share the space with other 8 rooms which can be a bit chaotic at shower time (after 20.30-21h).
It is true that the place has 5 wc if I recall correctly, all of them with showers inside.
The app system to get into the building/room got on my nerves sometimes, because it didn't work from the Vikey app itself, so we needed to go back to the received email and click on the link to get into the building/room.
Everything was quite clean, although we took care of our dirty dishes.
About the air conditioning system, being an old building, comes through the walls and the remote to connect/disconnect it is outside the room (just by the washing machine, I found it out on our 2nd day after a chilly night xD). I don't know about other people, but I personally find that a bit inconvenient.
Finally, the blind system was very old and we weren't able to make it work properly (somebody fixed it for us before our last night), so the street noise and light came easily through the windows. If you are light sleepers bear this in mind.