I stayed at Steven's place with a friend during the Fringe Festival and we had a wonderful time! Steven was super easygoing, patiently answered all my questions and was generally really easy to talk to and always quick to answer messages. He gave us a detailed tour of the flat upon arrival and even put together a little guide book with recommendations, so he's a really well-prepared and attentive host.
We generally had a very positive experience, felt right at home and would for sure recommend this beautiful flat to other travelers. The location is perfect for walking up to Arthur's Seat and not too far from the city center.
I'll be sure to check if his flat is available next time I'm in Edinburgh :)