Tolga's flat is located in a very nice neighborhood, 10 min from Taksim. It is located in a quiet street in an area with cafes, restaurants, shops, etc. One reaches also Fatih district easily (via Tünel). The flat was perfectly clean and has everything one needs during a stay in the city. We did not meet Tolga, but communication with him was easy and he is super nice. A friend of him gave us the keys - everything went perfectly fine. I definitively recommend staying at Tolga's place - it was great!