I stayed for about 10 days in this very clean and beautiful apartment with balcony and with all the resources you need for a perfect stay. The wifi is solid and strong and the bathroom and the kitchen are very spacy and well equipped. There is also a hairdryer.
The location is also very practical in Kypseli, for walks in green areas with no cars in the streets, with a lot of cafes, pubs and restaurants.
If you want to go to the senter, no problem for a walker to walk the way down to Monasteraki, less than an hour walk. If you prefer the trolley from Kypseli, it is very near. If you prefer the metro, walk to Victoria station and after two stops, you are in the middle of Monasteraki and close to Acropolis. Or you can take a taxi or an Uber which is very cheap, about 4-5 € to the senter.
Vasiliki is a very welcoming host also, and she is the most flexible and helpful person you can meet!
This apartment is one of the best places I have stayed in, and I will for sure tell my friends and family in Norway to request Vasiliki's apartment if they visit Athens.