All in all we had a very nice stay in Üsküdar. Nice neighborhood, pretty quiet. Travel to European site with ferry or Marmary , Taxi is due to the traffic conditions a mess. Apartment is fairly new, equipment like kitchen (stove) and kitchen utensils (plates, cutlery, etc.) is rather basic. No spices, cooking oil, etc. No washing powder, etc. Thus expect you will need to buy some stuff if you really want to use the kitchen and other facilities like washing machine. If you use the apartment just for sleeping this is not a problem though.