Elif's place is located really well if you want to be near Istiklal, Cihangir or Galata area. There's a cool atmosphere in the flat thanks to the design. Also plenty of amenities like coffee maker and big fridge if you want to be cooking.
The main toilet/shower is nice, there is a balcony where you can see Galata tower in the distance and you'll be overall comfortable if you're not put off by old, characterful buildings.
Elif is also quick to respond and helpful.
Only thing I'd say is the windows in bedroom let in sound as they are wooden frame and thin, so if there's people being loud outside at night then you'll probably hear it.