You can't be the location of Mary's apartment, nor it's charm or comfort! It's the ideal place for exploring the city, located just at the base of the Castle Wynd North steps (walk four flights and you are at the base of the castle/top of the Royal Mile) and near many good restaurants and places for enjoying scotch.
The apartment is set up as a rental, which means there are no personal effects to work around. There is plenty of closet space for hanging clothes; the kitchen is well appointed with appliances, table/cooking ware, and an empty cupboard. (Mary stocks some tea, coffee, biscuits, milk, juice, salt, pepper, and olive oil to get you going. She also provides cleaning supplies and detergents, which is really nice.) The master bedroom is an oasis with the coziest with a really comfortable of bed. It's great to have a full and half-bath, as well as lights that dim in the livingroom and an electric fireplace (great ambiance for sipping scotch and reading a book).
Like much of Edinburgh, the apartment building entrance is up a flight of stairs, as is the apartment (circular staircase). Those with mobility issues might have a strain.
I really appreciated all the little things Mary provides. In addition to those mentioned, there is a collection of books and dvds, as well as a complete "owners" manual for daily needs. Oh, and the place was spotless!
Communicating with Mary was really easy and she answered the few questions I had quickly.
I'd go back in a heart-beat and recommend this place especially to families with two children or a group of four adults.