Hassan is really reactive. I've contacted him at 11pm to know if I could book it for tonight!
Also his flat is well located for whom wants to visit Esenyurt and even Istanbul center. It's only a few minutes away from the Metrobus and close to the Marmara mall too.
Hassan also agreed on the last day to keep my luggage by him so I coul come back to take them right before my flight (really late)