Davids wife was very nice and she gave us a lot of information. The Communication was perfect - before And during the stay.
The flat was very clean and comfortable.
The only thing that wasn't perfect was the kitchen. There were nothing to cut vegetables on it or any spices. If you want only a place to stay, the flat is perfect, near Parc Güell, two Metro stations and with a nice nighbourhood, bars and restaurants.