My family and I ( 5 ppl) stayed at Ismet's place for 5 nights. Ismet is a charming and friendly host which makes it easy to communicate with. He managed to set up a ride for my family from the airport to the house.
The place is clean and the view over Bosphorus from the living room is priceless. The unit is on the ground floor and you don't need to carry luggages up or down the stairs. There are many good coffeeshop, restaurants and grocery stores in the walking distance and there is a tram station 5 mins away from the house. There is a dedicated housekeeper for the apartment who will clean the house per your request.