We had a great stay at Alaaddins apartment. He is an extremely welcoming and friendly host, he stayed up very late the first night to wait for us coming from the airport and handed over the keys. In the morning him and his wife prepared a fantastic turkish breakfast in his tea/coffeebar in the ground floor. He was always happy to answer all questions regarding Istanbul (where to go/how to get there...) The apartment is nice and clean and very central. Thank you Alaaddin!