Tracy's house is absolutely gorgeous! There was plenty of space, you never felt like you were intruding, and both Tracy and her partner (and their dog Eric) were all so welcoming and friendly.
We walked in to Edinburgh Centre one day, which did not take us too long, and a taxi back from the old town was only £6. On the other day we got buses, which were regular and stopped right outside the house.
You could not ask for a nicer place to stay, or for a nicer host to stay with. If this place is free on the dates you want, book it - you won't be disappointed!