As others have said, a well-placed, comfortable flat for one or two people. And quiet!
Local amenities are all around, it takes mere minutes to reach the Old Town and a little bit further is Waverley Bridge and New Town. Also nearby is Arthur's Seat and a couple of nifty parks. This is partly a student area so there are lots of decent coffee places and snack places to try if one doesn't want to be in the middle of the bustling tourism.
Everything was in good working order in the flat, and clean & homey. The only thing I can caution folks about is that if you cannot go up the three flights of stairs to get to the flat this would not be a suitable place for you.
I had a great time and would gladly stay again.