Great place in a perfect location close to the heart of of Edinburgh. All touristy spots (Edinburgh Castle, Camera Obscura, Royal Mile, Holyrood Palace, Royal Museum of Scotland, etc.) are within walking distance along with some great pubs and restaurants.
Note that due to the place being literally in the heart of New Town where there are many pubs and restaurants, some of the noise of pub patrons does make its way into the flat until the pubs close at around 10:00pm.
Place is very clean, with all amenities available, and all interactions with the hosts were hassle-free. Would definitely stay here again.