You cannot beat this location if you want to be in the heart of historic Edinburgh - it’s walkable to EVERYTHING. The apartment was comfortable - great beds and linens, great shower (I know, shocking in a building that is hundreds of years old). Be aware that since you ARE in the heart of a busy neighborhood, don’t forget your earplugs. As a practical tip, we found it much easier to get an Uber to show up if we met them up the stairs, outside the castle gates - something about all the stone walls confused the iPhone maps when we went the other way, down the stairs.