I strongly recommend Guliz as a host. She is kind as well as independent and has a profound knowledge of Istanbul which she generously shares with her guests. Her room is as described in the advertisment: central, cozy, clean - and quiet. You find nice little restaurants and food shopping facilities in the neighbourhood. Due to the proximity to Taksim square access to public transport and to Istikhlal Rd. is easy. Don't hesitate to make a request for rental. I would, if I came to Istanbul again.