First and most important is localisation of flat which is amazing. You can truly see the Edinburgh Castle from window while having coffee or tea which you will find in kitchen. It might be hard to find better view while staying in Edinburgh. From castle is around 6 minutes walk by stairs and from many other places it's just short 10 to 20 minutes walk. In the same building and in opposite you will find some cafes (there is one which is totally vegan which might be useful information for some of you). In the evening you can enjoy few pubs just few steps from you.
About flat... Place seems to be totally new. Is beautifully designed and very well equipped. There is plenty of space. Bathroom has both shower and bathtube so you can relax after walking tours. If you prefer to cook than eat outside the kitchen has really everything what you will need to cook. In bedroom we had spacious wardrobe. We spend there Christmas time so surrondings where really quiet and peaceful.
I can recommend to stay here if you want well designed, relaxing, comfortable place just for you.