This is a great flat to use for work or pleasure. The owner Tom and I exchanged emails before the trip and Tom answered all my questions well. He greeted me on arrival and showed me how everything worked. I found him very pleasant and easy to talk to. When I arrived, the flat had no microwave - I asked Tom if he would invest in one for the flat, and he was happy to oblige.
I was staying in the flat for work for 2 months, weekend commuting from Bristol. I was on my own, and it worked brilliantly for this. My wife joined me for 1 week and it was excellent for the two of us as well. The neighbours were quiet and, while we sometimes heard people walking around upstairs, it was not intrusive and there was no other noise.
The flat is located in a quiet residential area, close to the centre of Edinburgh - the description on airbnb is accurate. It is 10 minutes walk (for me - my wife says it is more like 15) to local shops & restaurants on Elm Row and Leith Walk, 15 minutes to Princes St. or to the York Place tram stop, and 20 minutes to Edinburgh Waverley Station.
Drawbacks with the flat - there are very few. The kitchen could do with a few more implements if you are serious about self-catering, and the shower in the bath could be a bit more powerful. I have a plug-in hybrid electric car (a PHEV) and I would have liked a 3-pin plug in the car park that I could have plugged the car in to, to recharge, but I was not surprised there was not one as it is a shared car park so who would pay for the electricity? Otherwise, I find it difficult to fault.