We stayed at Isik's lovely apartment for 4 nights. It was conveniently located 2 minute walk from Taksim sqaure. He was warm and friendly and very keen to offer advice on what to do and see in Istanbul, he even gave us a travel card for Istanbul's transport system which made getting around a lot easier. He provided ample amenities, clean towels, washing powder and clean drinking water. He was very easy to communicate if we had any issues. I happened to leave my ipod in the apartment and he was kind enough to post it to my address in Spain. Highly recommend staying with Isik, great apartment and a fantastic host.