Really lovely apartment with everything you need for a city break. Great location in a lovely area with cafes etc. Nice market just round the corner on a Sunday morning. Took us about 15-20 mins to walk from Princes St (with 2 small children in tow!). We caught a bus to the Royal Mile the next morning, the bus stop is just round the corner and its not very expensive, although you do need the correct change, so be prepared for that!
The Botanic Gardens are also within walking distance, we walked there along the river, which was really pretty.
Hanne was a great host and responded quickly with any queries we had. The apartment is clean and tidy with comfy beds.