I stayed at Ceren's place for 10 days and I had a great time.
The neighborhood is nice, safe, lots of restaurants and groceries. The subway station is just a 5 minutes walk, and from there you have easy access to the city center with express trains.
The apartment is really cosy, neat, super clean and looks just like the pictures. Ceren was away when I was there, but she had a friend, living nearby, check me in. Ceren is very helpful, easy to contact, providing me any information I needed, and making sure I had a great stay there.
So I highly recommend Ceren as a host!