We really enjoyed staying at Emre's flat.
The flat is at the heart of Besiktas and has a beautiful view from the balcony. I spent quite some time on the balcony. There is a park on the other side of the road, so you won't see any other buildings when you look at the window.
The apartment is not huge but very efficient and easy to navigate and use.
Overall, we enjoyed our stay and can recommend this place.