When I read the reviews I noticed that not many women had stayed here. But as a solo female traveller I would recommend this place. It's totally safe and within walking distance from Taksim Square. I didn't meet Ciwan as he was away but he kept up very good communication with me throughout my stay and offered me loads of tips and advice for Istanbul and beyond. The place is also very clean considering it's inhabited by a bunch of guys 🙂. Free to come and go as you please with access to the kitchen and a hot shower. Hotels are very expensive in Istanbul so definitely consider this place.