The residence is very well located in the center of Istanbul. You can get around easily by metro or by joining the main tram via the funicular. The apartment we had is very beautiful and consistent with the photos.
The residence is guarded 24 hours a day, which facilitates arrivals / departures and have even reserved transport for us to go and return.
Deniz has been very helpful and speaks good English. Thanks to him we were able to spend a good holidays in Istanbul.