Honestly this is hands down one of the nicest places I've stayed at. The view from the flat is absolutely breathtaking, it's like you're basically staying in the castle. The flat was also at the bottom of grassmarket - I can't think of a better situated location. Danni was so sweet and very communicative, really helping us with recommendations and always there if we had questions. Heads up that it's located on the top floor, so there's a lot of stairs, but regardless of that I would 120% recommend staying there and you really shouldn't look anywhere else!