Gianna's place is amazing. Very good value for money. it was clean, airy and very spacious. The apartment is located very close to the metro station, which is good, but is a bit far away from the centre of Athens. Even though we did not meet Gianna in person, she was very quick to reply to my messages and gave us some tips but there are so many things to do in Athens that you don't really need tips. The only downside was the check-in process as we were given the keys by a neighbour who does not really speak English but that was easily overcome by the magic of Google translate :). I would definitely recommend Gianna's place, especially if you do a lot of sightseeing like we did and only need the place during the night.