I doubt there can be many apartments with a better location than this. Right in the middle of the main section of the Royal Mile with traffic closed during Fringe.
The apartment is nice, confortable and with big rooms. It can get a bit bous in the first part of the night as all rooms look to Royal Mile, but we were so tired both nights that we had no problems sleeping.
Kaddeer was very helpful and accomodating. She managed to provide a cot for the baby and a place where we could leave luggage before and after leaving apartment. She even extended our leaving time.
Highly recommended.