We went to Istanbul for Christmas and we were very happy we chose Erdem's place. The location is perfect and right next to all amenities and a stone-throw from Taksim Square. The apartment is on the 7th floor (with an elevator) and the view of the Bosphorus is awesome. The pictures do not do justice to this view.
Erdem, the host, is responsive, helpful , accommodating with a can-do attitude. Our stay was very pleasant and we will definitely consider this apartment if we are in the same area in Istanbul.