When you search for a place, usually you don't mind about host. Fehmi is one of the best hosts that I ever had. He is a very kind person and he will back up you no matter time or distance. I had a health problem on the first night when we arrived. We didn't know anybody so we called Fehmi. He came in the middle of the night to help me. He brought some water and was worried about me. You cannot pay that with nothing.
His place is small but it has all you may need. Its very close to the old Istambul at walk distance. If you want to spend a coupple of days at Istambul, this is your place.