Very organized and accurate host. Prompt responses. Nice advises regarding local food and beaches.
Apartment is located in old city - very close (walking distance) to all attractions in Sultanahmet area. The location might very interesting for guests who should like to stay in real Istanbul :) small street with cats, chickens (yes!) and kids playing around. As many streets in this area this location has a lot of small businesses (mostly shoe manufacturing, bakeries, small restaurants). Pretty safe.
Apartment has practically everything what you need to stay. I can think maybe for one addition - shelf under mirror in bathroom might be very useful. Kitchen has all appliances - plus jar of very good Turkish coffee !
Thanks a lot to Ilhan and Mrs Gul.