Doruk is an excellent host. He was always responsive with any issues that arose during our stay...for example the wifi was out for the first few days, but he graciously signed us on to another network while the problem was being solved.
In terms of the apartment, the space is incredible. A large living and dining area with an incredible view of the Bosphorus and Fatih across the water. The space had all the amenities described, including a well-stocked kitchen. The bathroom was spacious and the shower was excellent. Also, a major plus is that the building has a lift, so it wasn't such an onerous task to bring luggage up to the top floor. The area where the apartment is located is fantastic. It was within walking distance from a grocery store, corner shop, the Kadıköy Metro, and all of Moda's major bars and restaurants.
Overall, this was an excellent stay.