Overall, I really enjoyed staying here. The location is great (i.e. central to everything on Royal Mile, food market 2 blocks away, pubs/ coffee feet away, etc), and the room was exactly as pictured. Since this place overlooks the Grassmarket, there is a lot of foot traffic outside the unit. If you stay here we recommend bringing a sound machine.
Other than the noise, this is a great spot. I'd stay here again.