Best place in Istanbul!! I stayed there for 2 months, and will come back whenever I can. Hasan and Fatma will make you feel at home, while giving you the space to have your own life. The room upstairs is great because it is opposite the terrace, where I spent many evenings having tea and working or reading, and had coffee in the morning... The neighborhood is interesting, has an unjustified reputation as it is very animated at all times of day and night but this should not discourage guests, it is very safe: I'm a 22 year old woman, and was able to come back at any time of the day/night and everything was absolutely fine. Don't hesitate to ask questions, Hasan and Fatma are super helpful!