I stayed in Lino's wonderful Cihangir apartment for one week, and it was a good decision! The 4th-floor apartment is beautiful, comfortable, and had great views. The Cihangir neighborhood is ideal with all its cute cafes, boutiques, art galleries, antique shops and restaurants nearby, and the apartment is a short walk to the famous Istiklal Street and Taksim Square (it's an uphill climb though). Just 5 minutes down the hill is Tophane and Istanbul Modern, and the tram conveniently picks up right there to take you straight to all the tourist attractions in the old city. Even with many of the tourist attractions nearby, the street itself is relatively quiet and doesn't feel hectic and touristy. Although I didn't get a chance to meet Lino, he is a very responsive and accommodating host. Instead I met with Davide for the key exchange, and he was absolutely wonderful, friendly, and extremely helpful. He's quick to respond to emails, met me at Taksim, and even helped me with my heavy luggage up the stairs. You can't go wrong by choosing this apartment! I'll definitely be back!