I stayed at Ellie and Scott's place for a week in October. It was a bit chilly but it is a nice time to visit Edinburgh. The apartment was clean and all that is listed has been provided. The bed is comfortable albeit the room is a bit small and I would have liked a hanging space for my shirts and jackets. I was also missing a table to eat and somewhere I could sit and work on my laptop for a few hours. Other than that the place is cozy and provided me with what I need for my stay. The downside for me was the corridor and the staircase which are not very inviting and do no justice to the nice apartment on the second floor.
The apartment is about 20 - 25 minutes walking distance from the town center. A supermarket and a few cafes are close by. Try the cafe "Century General Store & Cafe" up the steps at the end of West Norton Place. The walk to and from town leads past countless restaurants, pubs, and shops. Holyrood Park, an excellent place for jogging is, depending on how fast your run, about 8 - 12 minutes.