Stayed at Ethel's place for a few days as I had business at the airport. Location is excellent as it is a short walk to the nearest bus stop with 24/7 service to the airport (getting there in less than 10').
It's perfect for visiting the city as well, as several busses get you to the city centre in some 20 minutes.
The place itself is gorgeous, Ethel and Billy are excellent hosts.
Will definitely be my 1St choice option when back in Edinburgh.