We stayed around 10 days in Çağrı's apartment. Flat is not big but nice and clean, you can find everything you need for your comfortable staying. Çağrı and his family (specially greetings to his mother, we are so happy to meet with her) are very warm and nice hosts, they are ready to help you any time. The place is very authentic, you can feel how local people are live in Istanbul, but if you go some streets to the main road you can find touristic street with lots of cafes and small shopes. It is close to Balat and Fener vapur stations.