It was really great to stay at Işık's flat. The location is good, near the famous Istiklal Caddesi and close to Taksim metro station which you can go by to most of touristic place including around blue mosque and etc. And with nice view of the balcony, we got relaxed at the flat. Işık is a considerate host, helped us anytime when we needed. It would be a wise choice to stay if you want to be close to the center and also have a decent comfort inside.