I stayed for a month at the flat. I had no problem with wifi or water during my stay, and everything in the apartment worked as it should. Good place for digital nomads, especially if you plan to work from home. There are severel parks in the area, and one of very few places in Istanbul city center where running is possible. Supermarket is really close, and some turkish restaurants in the neighbourhood. There is also a rooftop restaurant on the top floor of the apartment building. Going to Sishane or Taksim is conventient with bus ~ 20 min if you want to visit the main streets. I travelled with bus every day to Taksim area, and had no problems. If you plan for long nights partying in Taksim, then be aware that it is not walking distance to the flat, but taxi is rather cheap. Overall, great stay, and great communication with Bengi. Thanks!