I would actually move into this flat, that's how much I enjoyed it. It's extremely large, comfortable, quiet and has beautiful natural light during the day. I do recommend arriving before dark; it was tricky finding our way around in the daylight as our neighborhoods in Ohio are set up very differently!
The apartment is right around the corner from Dean Village and a little coffee shop that you should definitely take advantage of. It's a healthy walk up to the Royal Mile and Edinburgh Castle so we definitely got our exercise in. And on Saturday mornings you'll walk past a farmer's market on your way up.
David and Bianca were constantly checking in with us and although we never met them they were one of the best hosts we've had. This is one of our favorite Airbnbs to date. We'll definitely be back.