Yesim's flat is absolutely for whoever is looking for a peaceful location in Istanbul but also very close (only two buses stops) for Uskudar Harbour with all these amenities (notably ferries and metro to the European side of Istanbul).
The flat such as the street and the area is full of character. Visitors will find a fantastic choice of fruits groceries, cafes and restaurants in the main street of Kuzguncuk, only 1 min far from the apartment (possibly even less).