Isik was a very helpful and good host. He was very prompt to react when we contacted him, and we had a very pleasant stay in his apartment. The apartment is in a great location, close to Taksim Square and thus easily reached. It has everything one needs: a bed to crash on after a long day of sightseeing, a functional kitchen to prepare breakfast etc. Istanbul is quite a loud city, and you could hear it - there was construction going on in the street - but that's not Isik's fault. Would recommend his place to anyone spending some time in Istanbul!