We very recently stayed at Stephen's flat and would highly recommend it to all travelers!
The flat was beautiful, spacious, very comfortable and the amenities were fabulous-especially the "wrap around" deck for great views of the city (& fireworks from the Tattoo in Edinburgh)! Portobello beach & promenade access were a few short blocks away & we took advantage of jogging/walking on the "prom" daily. Many cafes & great restaurants also within walking distance. Stephen also provided us with information on local and surrounding attractions, including Edinburgh activities. We did rent a car, but kept it in the garage space Stephen provided, and used the wonderful Lothian bus system to access Edinburgh (the bus stop was conveniently in front of Stephen's building and provided us easy and quick access to Edinburgh).
All in all, Stephen was a wonderful host and we hope to return again soon! Well done Stephen!