I really enjoyed my stay at Gina’s place. The apartment itself was extremely secure with a locked front gate that needed a key. The apartment was updated (loved the bathroom) and the host was incredibly responsive.
The location is around 45-50 min walk from the Acropolis center area and a 15 min walk from the nearest metro station. However, taxis are pretty cheap (I paid around €5-€6 one way to acropolis) so I recommend using taxis as a mode of transportation.