We spent a few days in Mustafa's house in Istanbul. The position was perfect, pretty near to the visit points in the city. The house was clean and quiet and the check in was pretty easy, the features of the house are made for a kind of traveller that does not care about luxury, but Mustafa told us at the time of prenotation, and it was quite good for us.
Mustafa is a very good and helpful person, he assisted us during the all time of our journey, always ready to answer to our questions and solve our problems (that were not connected to him or the house) even at night or early morning, we are glad to have found is place for our trip. I really recommend him, I hope to come back there if we're going to visit Istanbul again in the future.