We had a great stay in Istanbul at Tevfik's apartment. He answered all my questions quickly and efficiently prior to our arrival. He arranged an airport pickup for us even though we arrived in IST at 110A. If you arrive late at night know that appearances in the neighborhood are much better in the daylight! The neighborhood is great. There are restaurants, supermarkets, and great shops within a few blocks from the apartment. The Grand Bazaar is a short walk up a steep hill. You are close to the Blue Mosque and Aiya Sofia.
The apartment was clean and well equipped. We wouldn't hesitate to stay again on our next visit to Istanbul.