Özge&Cihan were awesome. They were waiting for us for check-in time and helped us to carry and lift one of the luggages to long stairs in front of apartment and he also gave me a super quick lift by his motorcycle ( he had an extra helmet for me) to the Embassy nearby.
They are friendly and approachable and thoughtful.
I do recommend their place if you like the beautiful view of Bosporus and you don't have problems with stairs from street to home. I'll stay again for sure.