Very nice flat in Istanbul city center: calm, beautiful, vintage, historic place. There is everything you might need. Shops and restaurants are nearby, as well as a metro station, which makes it easy to live and to get anywhere in Istanbul. The neighborhood itself is just superb, I couldn't stop looking around for another detail in architecture!
The host is great, too - very friendly, welcoming and ready to help. I'll try to stay here the next time I come to Istanbul.