Wonderful location close to public transport, lots of restaurants, and sights. One thing to beware of is that there are not two toilets in this particular apartment. There is one bathroom with a shower and sink and another bathroom with a sink and a toilet. Despite that, the views are incredible and the hosts were lovely. Three flights of stairs is a lot of stairs but for the extra space with a family and comfy beds, it was worth it (and a work out!).
Thank you Tarkan for a beautiful introduction to Istanbul. We loved it.