Isik is everything you could ask for in a host! He is friendly and has a wonderful smile, he answered all of our questions and helped us resolve our flight issues, and especially he made us feel at home in Istanbul. The apartment is really conveniently situated in the new part of town, very near Istiklal Street, and it's easy to take the funicular/tram to the old part of town (Isik even lent us an Istanbulkart to use while we were here). The apartment itself is well-lit, clean and quite adorable. I would definitely recommend staying here, and I would be very happy to stay here again the next time I'm in Istanbul :)