we enjoyed our time is shin apartment.Shin was a great, arranging airport pickup and helping us with question that we had at the time, although we didn't meet shin we met his friend on arrival he helped us and answered our question as well and he help us with our portable WiFi.
the location of the apartment was in the center there is a lot of restaurants, cafes and shops within 5 to 10 mins walking distance from the apartment.
the apartment was spacious and comfortable and they helped us by giving us a traveling card which you can use for the metro and gave us one of the important gadgets i think for a traveler which was the portable WiFi it help us go wherever we wanted without getting lost i will diffidently stay at this place again if i ever travel to Istanbul again.