We stopped for 9 nights at Cüneyt's apartment and I can say that we fully enjoyed it. Taksim square is nearby and grocery shops are quite close (there are 2 Carefours on 3-5 min walk). Also, the host provided the excellent communication and support. Once, we have got an electricity issue, however it was resolved very quickly thanks to Cüneyt. So, anyone plans to stay for short-long period of time in Istanbul, then you can choose this apartment.