the hosts were incredibly friendly and kind - they came to meet us very early in the morning and explain how things in the flat work. they even left delicious cookies and homemade jam for us to eat! the flat was kind of small but cozy, clean, and a pretty pink. the acropolis and city center was about a 30-40 min walk (i think) - more of a hike, because athens is mountainous and the roads can get a little steep, but its doable. plenty of small shops closer to the flat too, if you don't want to walk too far.