Elif'room was amazing. Perfect for a couple or a solo travelling (the bed is not a proper marriage bed, its 1.5 but believe me we fit perfectly and we are both chubby hehe). In the middle of Kadikoy, you have everything you need in hand: cafes, pubs, restaurants...Also is like a 10m walk away from the ferry station if you want to cross to Eminou or Karakoy. Elif and Elif's sister also live in the apartment but we had a lot of privacy and they were both really nice to us. Would definitvely repeat if I have a chance to come back to Istambul.