The apartment is absolutely great! Spacious, with two living areas, a kitchen, bath, WC and bedroom, the place was bigger than we expected. Easily accommodated three people, with room for a fourth if need be. The best part of the apartment is the location. It's walking distance from Taksim Square, the neighbourhood was safe and easily accessible by cab (important if you're traveling with luggage).
All in all, we had a perfect stay, with Aycan being super responsive and helpful for any communications throughout our trip!