A lovely place to stay that is very central. Apartment was very roomy, easy to access (with a lift). The walk was decent from the train or bus station. Double bed was comfy, single bed was firm but comfy. Shower had plenty of hot water and the kitchen was well stocked. A good little home away from home for a short stay in Edinburgh. Just off the Royal Mile the location could not have been better. Easy to walk up to the Castle or down to Holyrood. Lots of shopping, food and touring options within easy reach. And the hosts were great to communicate with and they left recommendations in the apartment.
The only thing to be prepared for (not a downside) is the noise. If you are central it comes with a bit more noise. I had ear plugs and they worked great, meaning a good night sleep. Ear plugs were an easy and no brainer trade off for such a great apartment and location.