Great flat, great furniture, very quiet, everything working properly, big and nice living room, bathroom kitchen and bedroom really comfortable. I did enjoy a lot my time there and I could use the flat as my own home (I had to work and live there also during the day).
Many stores, shops, groceries, restaurants and coffees in the area. All the surroundings are safe and I strongly suggest Berşan flat.
Berşan helped me remotely (she was away) with any and all my requests. She is greatly responsive (she has always replied really within a few minutes) and satisfied all my questions.
Highly recommended both if you have never been in Istanbul or if you are familiar with the town.