Four of us stayed at Enes' place for four days. The apartment is on a small side but very clean, and excellent location (3-4 minutes walk to Taksim metro station).
Enes is a great host. We checked-in around 10:30 pm and he was waiting for us and gave us a quick apartment tour and some helpful tips regarding neighborhood and Istanbul. He responded very quickly to all of our questions and helped us in communication with the taxi driver that brought our daughter from airport.
Overall, we had very positive experience staying in Enes' place and we would recommend to anybody who wants to stay around Taksim Square.