I really enjoyed me stay here. It's perfectly situated to explore downtown Edinburgh. The room was very comfortable, especially the bed. Communication with host was great; they made check in super easy and seamless. The location can't be beat. You are near the heart of everything in Old and New Town with easy walkable access to all sorts of public transportation.
The only downside would be that some of the rooms look out over the lane way in the back, and the typical city noise back there (refuse trucks, late night business noise, late night drunks) can make it hard to sleep at night. I was able to adjust to it after the first night or two, though.