I made my reservation with Ozgen quite last minute since my original Airbnb host cancelled last minute and I'm so glad they did! Ozgen was a wonderful host - fast communication, easy check in and lots of helpful tips around the area.
Her place is really beautifully decorated and very comfortable. The room is a very good size and has a balcony with a view of the Bosphorus.
You will hear the call to prayer from one of the local mosques several times a day including early in the morning (around 5.30am) so if you're a light sleeper then bring earplugs!
I live in a Muslim neighbourhood at home so it doesn't bother me but if you are not used to it, it can be very different for you!
The location is great - lots of very nice cafes and restaurants close by, and easy to get to all the major sites by tram.