It was a very very clean apartment, but a bit noisy. At night you could hear everything from the street plus there is a club underneath.
Also the location is a bit tricky. There are a lot of busses to many places but there are not as many on the opposite direction to stop near the appartment. The metro station is indeed 10 minutes walk from there, as well as the mall.
Koray is a very kind host. When we arrived he carried my luggage and he brought us the things we asked. Nevertheless the apartment he gave us is not the one listed on the photos