Location!!! The castle view is beyond amazing, but the location is also right in the fun Grassmarket with plenty of great choices to eat and we were able to walk to almost everything from this central location.
The flights of steps are what they are, but worth the view. Nothing to do with the place itself, but the apartment is the first one on the floor so others using the 3rd floor entrance seemed to let the door slam shut all night. With everything else being so great -I’d love to stay hear again & just pack ears plugs for night.