Just book! The apartment is lovely and in a perfect location to explore Athens by foot. Everything, shops, restaurants, coffee places and sights is closeby. Pireaus is easily accesible by public transport as well in case you want to go to an island by ferry. Maria has a lot of local tips to explore the neigboorhood as well, which we loved. She waited for us to check in and always responded very quickly. Some construction started during our stay in the apartment above and she immediately responded and tried everything to find a solution!