Adrian has been a perfect host. We didn't meet him in person but he has been amazingly precise in order to allow us to go into the house (he left keys in a safe locker) and he has always been available for any communication. His apartment is very comfortable, spacious, luminous and on a walking distance to downtown Edinburgh.
Moreover he had been so kind in booking our taxi in a early Sunday morning.
Just the only inconvenient thing was not having wifi in the house. By the way it was not such a problem since in Edinburgh is very easy to have wifi when you walk in the street. I will sincerely recommend this apartment for a perfect stay in this beautiful city.