Location, location, location is the name of the game.
It is right on the Royal Mile almost halfway between the castle & the Palace. Perfectly placed for the old town.
The apartment itself was lovely. So cosy & amazingly quiet for its location. I can't comment on the super comfy bed as my friend took that, but the sofa bed was more than pleasant to sleep in.
Alison was responsive and was kind enough to let us store our bags on check out til our train departure.
I wouldn't hesitate to stay again as honestly this was the best location for exploring Edinburgh.