We had a great time in Istanbul and the apartment was just perfect for that.
The location is quite central, which means you have about 20 min by cab to the different sights or places like Besiktas etc.
The host was great. There was always a lightning-fast answer and our wishes were realized very quickly.
What I would find better is if there would be more cleaning utensils like detergent for cleaning the glasses. Among other things there was also too little toilet paper.