I stayed there for 1 month (we were 2), the apartment is really beautiful aesthetically and the decorations are on point. I wouldn't recommend it for long term tho, the wardrobe could fit just a few things (I recommend to purchase a bigger one)
The washing machine is on the building in front of the apartment, we asked for the keys and they let us use it when we wanted.. it is really recommended to fix the issue with the cleaning room, same thing with the washing machine, there is a cleaning room just outside of the building but they have the key for it and leave it open if you ask for it, we had a few complication with this, we wanted to clean on friday and had to wait until monday, this can be fixed by simply leaving the keys or leaving cleaning stuff on the house... Also I would improve host comunication.