Hikmet was a great host. We spent 5 days in his apartment in the old istanbul. The location is great (7 min walk to the Blue Mosque), the apartment is very confortable and clean.
It's an ideal base to explore the Old Istanbul. Hikmet will help you a lot, if you want to organize your pick up from the airport, cruise or anything else. I highly recommend to try the Ayasofya Hurrem Sultan Hamam it was fantastic.