Overall, the apartment was great:
It is very beautiful with great terraces (you can see the acropolis!) and extremely well located with nice bars and restaurants just down the street, all the while being super quiet cause on the last floor.
On the other hand, they were small downsides: as the apartment is super luminous, it lacks some stores for the morning light. Also, we saw some cockroaches on the terrace - I think it had to do with the restaurants down the street cause the flat itself was super clean.