Apartment is lovely, very bright and comfortable.
I had a young baby with me and Claire and Lou had no problem settting up a travel cot and highchair, both of which were very clean.
The street parking is a little tight but take your time parking up and you'll be able to let cars pass comfortably.
Its situated in a good location and you are right round the corner from Hayarket Station. The walk to the Royal Mile was a little longer than expected but can't complain really as you can walk through some beautiful gardens.
We enjoyed our stay and I can definitely recommend Claire and Lou's apartment for your stay.