The place is awesome and Cenk is a delightful host. He was waiting for our arrival, gave a lot of tips for the local food and entertainment places.
It's located close to the Taksim square in a historical but renovated building, and it's in a heart of the nightlife too :) a small set of stairs leads to the apartment, which is surprisingly spacious, has a lot of windows and lights.
The description is accurate! I honestly enjoyed my stay