What was good -
1) Great location - short walk to Findikli train station from where you can take a train to see the key sights. Also Taksem Square is a short walk and there are lots of shopping and dining options nearby - grocery, restaurants, etc.
2) Great view of the Bosphorous
3) Quiet apartment. We got no noise from the street.
What was not great - it was too big a premium for what was a very basic apartment. There was no soap, no shampoo. In the bathroom hot water was not flowing consistently - there were multiple times when we had to just wait in the midst of a bath before hot water began flowing again. The washing machine instructions were not in English. The kettle lever was faulty and had to be pressed continuously for it to boil water.
It was very hard to get a taxi to come to the address - the road is a dead end and drivers could not figure out the address. We had 3 Ubers cancel on us. Finally we had to walk down a steep set of steps to Kazanci Yokusu everytime (once with heavy luggage) before getting a taxi.