Sarah's place was just as described, and actually felt a lot bigger than it looked in pictures. The location was fantastic - about a minute from lots of lovely restaurants, about two mins walk from the entrance to the Hogmanay street party which we were attending on Princes St, and very close to public transport links.
The bed was comfy, wifi was fast and reliable, shower was good, no complaints at all.
Sarah was very communicative and gave plenty of restaurant recommendations to us. She was always on hand and replied to us pretty much instantly when we had questions. I would definitely recommend staying here!