The apartment is very spacious and confortable, it has living room with sofa, bedroom, small kintchen area, bathroom and terrace. Tv in living room and tv in bedroom. Bed is big and confortable. The room is very quiet, no noises coming from the street. There is air conditioner.
It's well located near many bars and restaurants. 10-15 minutes walking to Santa Sofia and other touristic atractions. Beside Santa Sofia you can take the tram to visit other places. This is very convenient.
Parvin, the owner is very friendly and interested about their guest. He provides info and can trips, excursions, airport transfer...
I recommend to use airport transfer on your arrival as Fatih district is made of narrow streets and alleys so it's a bit difficult to find if is your first time in the area.
To resume: good place to have some rest, friendly owner, good location to visit Istanbul.