This spot is the perfect place for a solo traveler - it's very centrally located, but not in the midst of the craziness of the parts of the Royal Mile closer to the castle.
There are 2 rooms (one has a double bed, one has a twin - I might try to book the double bed because the twin was pretty narrow, though super comfortable). There is also a nice-sized bathroom, kitchen, and a lovely sitting room overlooking a shared courtyard.
I have never stayed at an airbnb that was so spotless! And D.L. has really thought of everything - tea and coffee, converters, a fan, etc. Can't ask for more! She was an excellent host!