Awesome apartment 10 minutes walk away from the centre. There a good selection of restaurants within 5 minutes of the apartment and it has all the necessary equipment to cook for yourself as well. Although it's so central the area is very quiet so there's no issues with noise from the city at all.
The apartment itself is beautiful and very clean. Martin left some groceries and a bottle of wine so no need to go shopping before having a cup of tea (very much appreciated).
In short, the apartment was excellent and I hope to be able to stay again the next time I'm in Edinburgh