The apartment is really great, especially for couples! It is small, cosy and has everything you need. There is a supermarket 3 min away (same as a coffeehouse, a bakery and lots of other different shops). The neighbourhood is very nice and the city centre is 20-25 min on foot. Public transport works well, and there a quite a few bus stops near the apartment.
The host, George, was welcoming and ready to help us with all our inquiries. He readily accommodated the time of our check-in and was just a message away during our whole stay.
If you're thinking of visiting Athens, I'd definitely recommend this place!