I stayed at the Stone Flats for just one night because of a short visit in Istanbul. We were received by family members of Güner & Berivan and they were very friendly and welcoming. The communication with Güner (via e-mail) was great and he is a great host as were his family members. The place is close to Taksim (10-15 min. walk) and it is not loud at night, in the morning it can be but it is not that bad. I do recommend this place if you are looking for a short stay at Istanbul.