What a fantastic apartment!
The location is perfect. Cihangir is a cool, relaxed spot in Istanbul with many bars, cafes and restaurants just a fews steps from the apartment. And they were full of locals not tourists which is exactly how it should be on a visit. Galata and Karakoy just a short walk away and the big sites perfectly walkable too. So it feels like 'real' Istanbul and not a tourist spot.
The apartment was very private and super comfortable. Exactly as described. It was a welcome place to retreat to at the end of the day.
Communication with Pelin was perfect - she was very quick in replying to my questions and provided comprehensive information at every step of the booking and my stay.
I recommend this place 100%. I will stay here next time I am in Istanbul.