Ertug and his wife were extremely warm, welcoming, accommodating, hospitable, fun and kind. They have a beautifully decorated and CLEAN apartment and balcony only two blocks from the Aegean Sea. Very convenient since it is near the airport, so if you take a taxi it will cost you maybe 20 TL. They are very knowledgeable about Istanbul and Turkey, as well as very well traveled as a family. I would definitely recommend staying with him and his family.