Mixed feelings.
The good:
Great location, very central yet very quiet.
Very friendly and helpful host
The main bed was very comfortable
The bad:
The flat is small and dark. It only has windows on one side, which gives on an inner courtyard.
The sofa bed is very uncomfortable. Also, the bed cover was old, worn out and had seen better days.
The place is not car-friendly. There is no parking on the street (max 2 hours) so we left the car at the nearest underground car park: 30 euros/day! That hurt.
Overall, we felt that despite the great location, the whole deal was way overpriced. The flat is very basic and quite dull and we felt that adding up room + parking charges, it ended up being overpriced for what we got in return.