We have just finished our holiday in Istanbul and we are very happy with the apartment we had chosen. It has a very good location, near a lot of public transports, good restaurants and coffee places. The apartment itself has all the necessary accomodations and was well decorated. The hosts helped us a lot with a very detailed information about using the local transport and reaching the place. They were very accurate with our check in/check out time. We could definately recommend Drei Four as hosts and their apartment as a place to stay in Istanbul.