We've spent wonderful week in Kerem's apartment. Place is just fabulous, with a nice bourgeois touch and the area of Cihangir is great. Not only the apartment itself is very beautiful, spacious and comfortable (trust the pictures here), but there is also everything you need for cooking (spices, oil, salt) and in the bathroom (shampoos, washing powder, etc). We didn't have to buy anything for our stay! Internet is very stable (it's important in Turkey, beleive me :-))) and we could concentrate on work and having fun on a free time. I would surely recommend Kerem's apartment for everybody who comes to Istanbul for a long or a short stay. It will be very comfortable. Check-in and check-out were uncomplicated and Kerem was always available for questions.