I traveled to Istanbul with three of my close friends. During the stay in Istanbul, we really enjoyed staying in this apartment since the hosts were so nice. They not only told us the travel information/tips but also left the first breakfast and fruits. There're lots of towels for us to use. It's a very convenient place to stay as it's near Sultanahmet. (There's a tram route here.) By the way, Gulnur even gave us a bottle of red wine during our stay. Thank you so much. Our friends also enjoyed it. (They did not have any experience with booking from Airbnb.)
P.S. The WiFi was okay but could be better.

Above all, highly recommended for everyone. Cheers : D