Guner and Guven were very nice and professional hosts. They were very helpful, sending us the suggestions about what to do/eat in Istanbul and booking taxi for us to the airport. They made our trip in Istanbul much more convenient. Since it was low season, they upgraded our apartment! The Four Seasons, where we actually stayed, was very spacious and pretty clean. It was very easy to get to the old town from the apartment. The area is residential and feels pretty safe. However, I don't think I would walk around there at late night by myself since I'm a little chicken...although there were lots of people on the street even after midnight. Just a few blocks away, there are many restaurants, cafes and shopping malls, where local people hang out at night, which made the experience of staying there more local instead of tourist oriented. Overall, it was a great joy for us to have chosen this apartment from Guner and Guven.