One of my best AirBnB stays! Ian's attic room is truly spacious and very light (although the black out blinds work a treat a night). The bed is seriously comfy. If you need the wifi, it's fast. Ian is a great host, friendly, happy to chat, but also happy to give space if that's what you want.
As for location. For me it was great. A 20-minute or so level-ish wak to the Grassmarket. The Meadows are also close-by and you can walk into the city that way too. Plenty of buses nearby.
All told, I really couldn't have asked for more.