George's place was a charming little apartment above a neighbourhood cafe the Thisio area. Do note that the cafe is open till late and you will be able to hear the music playing from below you, but if you are a person who isn't fussed about background noises like me, you won't have any issues sleeping.
Location was really convenient as the Thisio metro station was just a short 5 to 8 mins walk and if you felt like walking, the Acropolis as well as Monastiraki areas are totally doable by foot if you choose not to take the Metro (which i have done so on some days). The neighbourhood also felt safe and as a solo female traveller, I didn't feel unsafe at any point while walking around the area.