We had a great stay in Edinburgh! The place is centrally located, super clean, well connected, communication and self check-in/out was superb, and the apartment is more than well equipped.
Note that the apartment is not actually located in the building on the photo, this is a hotel on the other side of the street.
While it didn't affect our stay at the apartment, guests should know that there is some constant humming noise (also with the windows closed) in both bedrooms. The smell suggests that it's probably comming from the ventilation system in the backyard which seems to belong to some of the restaurants in the vicinity. Furthermore, the fireplace was out of order because of a missing vent and the door to the second bedroom was not closing.