I definitely recommend Galateia for your stay in Istanbul. The flat is really nice and clean, the location is really convenient - the street is quiet but very close to restaurants, cafes and shops.
I worked from the flat during my stay and the internet connection was good enough to do my meetings and work which is a big plus!
Last but not least a big thank you to the staff who is very helpful and sweet, they answered every request and are always there, it made a huge difference.
We’ll come back!