I didn't get to meet Fatima in person, but her husband Hasan welcomed me very nicely and was very helpful whenever I needed something. I went to Istanbul in order to learn Turkish and Hasan would always take his time and have conversations with me in my pace. The house itself is beautiful and clean, be aware though that half of the rooms' windows are covered be the neighboring house. I imagine this can also be quite reliefing in summer though and on nice days I spent most of my time at home on the roof terrace anyway. The house is a ten minute walk away from Taksim Square, and busses to the historic peninsula leave just around the corner. All in all I can only recommend staying with Fatima and Hasan!