Stayed for about a week in the apartment and loved this place! The only disadvantage is that it is on the FITH floor and there is no elevator so be ready to carry your luggage. Apartment is very clean and in the perfect area very close to All the touristy entertainment! We walked to takin square, galata tower, Istiklal street.
My favorite is Sunday farmers market you walk in to right when you leave the flat. Definitely check in out if you there on Sunday, best prices for fruits, olives, etc.