Very cool flat. It's a bit mysterious at night and angelic bright during the day. The feeling of art is everywhere and every day I found some new details in the flat bringing me to new thoughts. And a nice view towards economic center from the terrace.
The only one thing I want to warn you: Istanbul is a hilly city, and the flat is right on a downhill, so expect a lot of ascents and descents =) Not an issue for me, just warning.