Very spacious apartment with all amenities you could need - living room with TV, large balcony, bedroom with comfy bed, kitchen, and bathroom with toilet/shower/washer. Location is very close to the main attractions of Athens - cross a few main streets and you'll be within walking distance to the Acropolis and the Acropolis Museum. Host was very communicative and responded to all my questions very quickly. It can be a touch noisy at night, but I always travel with earplugs. For those who appreciate sleeping in darkness, there are shutters which absolutely eliminate all light - much appreciated.
Enjoy your stay, and be sure to try Pauli's Grill - a family restaurant just a few minutes walk away.