I stayed for more than a week in room number 4. I felt very comfortable and can only recommend it. I had a lot of space with three own rooms. The apartment is very stylished in a music theme with guitares in the living room for example. In addition, the rooms were regularly cleaned and thanks to the heating in the bedroom and bathrooms, it was not cold in winter. The view is amazing, one can see the river. Besides, the location is perfect as one can walk to all major attractions but during the night it is also quiet.
I hope to come back soon.