The highlight of the apartment is definitely the stunning tarrace mit the beautiful view on the Bosporus. You have the perfect view on the entire European side of Istanbul! :) We enjoyed our time there very much even if it was raining and cold for 2 out of 4 days. I gave only 4 out of 5 stars because we had constant problems with the entrance door of the building. Even though we texted a few times beforehand, Faruk forgot to give us our entry code for the building. Other guests in the same building gave us their code until we got ours, unfortunately, it didn't work very well. As we travelled to Istanbul for the weekend to join a wedding, on one of the nights, we just came home at 1 am in the morning and were very unhappy to find out that the codes didn't work anymore at all. That night, we would have had to take another hotel room if another guest wouldn't have opened the building for us. You can imagine, they were not happy to be woken up ! To our mysterious saviors: Thank you very very much! :)
Faruk texts back really quickly and was generelly very helpful but in that situation, he couldn't help as he doesn't seem to live closeby. It is really extremely annoying to stand in the rain and wait for the door to open without a plan B (=key or person to call in the building)!
Otherwise, we were very happy with the apartment!!! :)

There are small minor things, which I want to mention because I think they could be better described online:
There is one double bed in a cozy nook in the living room (without door) and a separate single bed in another small room - so the apartment works for 3 people but is quite intimate. There is a microwave but no stove or oven and cooking is not allowed. The apartment is in the 4th floor without elevator (my mum was a little shocked at first but she managed well). The neighbourhood is very beautiful and safe but there are (almost?) no restaurants or bars which sell alcohol - but there is a supermarket really close by, also selling alcohol, so no problem to enjoy the drinks on your private terrace!!! :)