The host is very experienced, professional and helpful.
Literally one minute away from all the most important historical site ( Sophia, blue mosque, etc … ) 5 minutes from the tramway to go to istiklal and kabatas to the ferries to the princesses islands.
It’s basically two separate apartments. The top one is a perfect studio with a kitchen and dining table.
And the bottom floor is two rooms with one entrance. So first one leads to the second.
And also you have the terrace with a very close view of the blue mosque ( which can be expensive if you’re at a restaurant.
10 minutes walking from grand bazar 20 minutes from Egyptian bazar.