I had a great stay at Cem's place. He & his family are very friendly. Cem responds quickly to requests and knows English well.
The two rooms are nicely furnished with a great window front. Everything is new and clean. The house is a former summer hotel from the 60s in Bauhaus style. A very special place!
Around the corner is a sailing port with restaurants & bars, as well as a supermarket and bakery. Everything you need is there. It is a very quiet, affluent residential area. The ideal balance after a busy day in hectic Istanbul.
And best of all, Kadiköy/Moda, a super interesting and lively neighborhood is about 10 min away by cab. There are many restaurants, bars and stores there. And from there you can take a ferry to the European side of Istanbul.
I can fully recommend the host and the accommodation.