Amazing place in a great area filled with nice cafes (I recommend Journey and Kahve 6 (~10 min walk) for breakfast and lunch; Probador Collectiva (~4 min walk) for specialty coffee) restaurants, vintage stores and art galleries. The apartment is very cozy and equipped with everything you might need – from coffee and tea to the projector for the film nights after strolling around Istanbul :)
The only thing you should be aware of that the apartment is in an old building without an elevator and a spiral staircase – be mentally prepared to carry your suitcases ;)
Burak is also very friendly and easy to communicate to.
All in all, highly recommended <3