Safa was very kind, he managed to let us check-in very early.
The location of the apartment is very great, Havabus shuttle to and from the airport is about 9 minutes walk. A metro station also close by, easy to reach the Kabatas station with a Funicular and continue with a Tram to the Blue Mosque or Grand Bazaar. Taksim square is about 5 minutes walk, easy access to Istiqlal Street.
The room has a plenty amenities, including a washing machine which will be very handy if you visit during summer.