Mesin's flat was OK, 15 min walking to Taksim square. When we arrive, a girl just gave us the keys without any explanation. Also, when we made the check out, we were suppose to wait for Ergun, his assistant, who did not appear (at least at time). Also, the communication with him was difficult when we were in Istambul. I had problems with my movil phone so I can access to Airbnb account and he didn't answer to whatapp message until I wrote twice.