Kalen is a wonderful host. He met me at 1 a.m. (!) before the front door of the house and helped with baggage. Than Kalen brought me large bottle of water. The room is just as in the description. It is in the old part of the Istanbul, very picturesque, with very beautiful view. And air conditioner worked! And in the morning, when my taxi did not come Kalen helped to be in time in the airport. I seriously and warmly recommend Kalen as a host and his flat for staying.