This place is very well located.. Walking distance from the Bosphorus, Taksim square and many little grocery shops, restaurants and cafes.
The appartement was very clean, quiet (bedroom is on the backyard side) and very well equipped so I did not have to buy anything except food. All kitchen needed appliances (no dishwasher though), towels, extra pillows blankets etc.
In addition, the person I was in contact with was super responsive and helpful from before my travel until after I left the place.
I highly recommend staying there.