Our stay at one of Hikmet's apartments was excellent. The apartment was as described, and cleaning of the apartment was daily made. Furthermore, he arranged a taxi to pick us at the airport, and another one to leave.
He also invited us to have breakfast on our first day at his beautiful terrace. The rest of the days we had the opportunity to continue having breakfast there for low price.
To be honest, we chose a very nice place to stay in Istanbul, and if I come back, I will definitely stay at Hikmet's place again.