We all really enjoyed our stay in Edinburgh and were very impressed with Chris and Erin's apartment. Its well laid out, the views from the window of the main room are superb, and we loved the decor. We had a mix of eating out, and preparing meals in the apartment, which was well provided. There is a small Sainsbury's very close.
Leith was a great place for a base, especially as we were blessed with great weather for the whole of our trip. We walked into the City Centre each day on Leith Walk, which is just a couple of miles. Leith Walk is a pleasant walk, packed with various places to eat. A tram extension to Leith is being built.
We would also recommend walking (or running) on the path by the Water of Leith. This is a great way to get to the Botanic Gardens, which are well worth a visit (free, but must book ahead).
Note that the car parking directly outside is suspended at the time being. We found a space on Tower Place, then we didn't touch it for the duration of our stay.
We would very happily stay again and would recommend the apartment to anyone visiting Edinburgh, who wants somewhere outside the centre.