We stayed in this apartment for four days, on our boys birthday. We were in 5 but we could manage inside. The apartment was clean and very comfortable, lots of toys :)
We did't met the owner but their friend was very helpful and showed us around the house.
Communication was excellent, they were very helpful even when we got locked outside the apartment. Lots of shops and restaurants around the apt, metro line at walking distance. The only down side it is that is on the third floor and no elevator.
Would definitely stay there on our next trip.
Thank you Sabine and Lilian !