Berfin and her friends are a group of very kind people from all walks of life. You'll enjoy it here if you are interested in the young, student lifestyle of İstanbul's youth, with everything that goes under that.
I was treated as a friend rather than a guest since I arrived, and Berfin did a great job being a kind and generous host (friend, in fact).
The house was busy during my stay, but that added to the experience. I still had my space and privacy to do work.
Sparky the Cat is a calm member of the house who will also become your friend if you let her.
The place is central in a quiet street (minus construction work), and gives you access to the best of Kadıköy within a few minutes on foot.
Çok teşekkürler, Berfin and friends!