Tracy is the best host, you could imagine. She is very helpful, we didn't even have to ask her for advices, she gave us them of her own initiative. Our trip to Edinburgh was so brilliant not only because it's a great city but also because of her.
Moreover, Tracy's flat has a great location, it's easy to get to city center and to the airport from there. The place is just like Tracy said cosy; tidy and very comfortable.
I highly recommend Tracy as a host and this place to stay as well!