We (group of four) spent four nights in AC's appartment. Definitly would book this flat again.
Four bedrooms with comfortable beds and two bathrooms. Well equiped kitchen, which we did not use due to the great restaurants (fiord, katla) in 5 minutes walking distance. Also a lot of nice coffeeshops and bars are located very close. In the five days we did not use any public transport (except airport transfer) and enjoyed walking to the different sightseeing spots and other areas as grunerlokka. Transport from airport to the flat is very easy (direct train and 5 minutes walk). Communication with the host was very good.