Selim is very helpful (also before arrival, answered all my questions asap). He also organized an airport shuttle for us, which was really convenient. The appartment is exactly like on the pictures; modern, beds are comfortable and kitchen is very good equipt (big fridge, microwave); the apparment got cleaned twice in our four day stay. When we arrived around 2pm - the house cleaning women let us in. Also there where some water bottles in the appartment which was very convenient!
Also the location is perfect - away from busy life - though like 10min walk to Hagia Sofia/ Blue Mosque.
We had a very good stay!! Thanks Selim.