Zeynep place is extremely comfy, super clean, nice smell and a very comfortable bed.
Zeynep was a very awesome and kind host, she even cooked and offer me to eat with.
The apartment is a very active safe neighborhood 4 minutes from the Kadıköy ferry terminal.
You can find all kinds of shop's near you walking maximum 5 to 6 minutes from the apartment.
And if there anything you don't know where to find, no problems ask Zeynep and she will draw you a sketch.
I highly recommend Zeynep place.