Ali is a great host, very available for support at any time and not intrusive at all at the same time. The apartment was 100m walk from Istiklal, the main shopping street in Istanbul. The apartment was wide, clean, fully equipped and with a breathtaking view on both Bosphorus and mouth of the Golden Horn. I think we couldn't have enjoyed our stay more than this. The neighborhood where the apartment is set is made up of quite steep streets (like most of central Istanbul I'd say), so be prepared!