The apartment was perfect. Nicely decorated, fully equiped, clean and spacious. We were 5 people and he had no problem in sleeping. It was near the centre, easy to walk to but also near a lot of bus stations. The only problem we had was that in the middle of the night and without us doing something the fire ditector started beeping and we had no idea how to stop it. But we called the owners and they helped us turn it off.
Next time we visit Edinburgh we will definately look for David's apartment for our stay.