Huge apartment, very comfortable, extremely friendly and helpful owner. Yakup was available throughout our stay, always willing to help and bring us anything we needed. The area is very good, right in the center of Taksim, close to many restaurants.
The apartment is a basement apartment so expect a little mold and musty air. We booked very last minute (due to a cancellation of another apartment) so maybe that's why the place wasn't completely clean and ready for us, but the efforts of the owner made up for everything.