The apartment is comfortable and clean, everything is as described. It's a perfect location to explore the city and still have a quiet home. 5 min to Istikal Caddesi, 15 to Galata Tower, 30 min to the Topkapi Palace and Hagia Sophia/Blue Mosque!
Isik is very helpful host. He offered to pick us up at the airport and he let us a public transport pass.
I definitely recommend his flat!