In summary:
-Great location
-Nice place
-Would stay again
-Would recommend to others
Pros:
-Location unbeatable, in the heart of Old Town with the Royal mile a stone throw away
-Alison was especially hospitable, preparing the place early for us
-Thoughtful extras e.g. a guide book for local restaurants and attractions, a bunch of DVDs for a night in, milk in the fridge, washing liquid
-Very good quality washing machine (handy for a long holiday like ours)
Cons:
-The building is quite old, although there is a certain charm to it