This place was exactly what we wanted. It was quiet, spacious, and comfortable. AC, a washing machine, a decent bed, and a reasonable kitchen.
Quiet: It's very quiet thanks to the room being on the opposite side of the building as the road plus there are blackout shutters that block sound.
Washing Machine: We used it a fair amount as we are travelling light and needed to clean our things after a lot of sink washing in other places.
Bed: It's not the bed I would buy for myself but it's comfortable enough for a good nights sleep.
Kitchen: There's a stove, medium sized fridge, and good sized sink. There are enough dishes for basic cooking but you wouldn't want to prepare a feast.
Location: It's more like 13 minutes to the Acropolis. The subway is 9 minutes away and most of the cities attractions are a short 2 stops away. If you need to be right in the action, this is a bit out of the way, but if you're fine with 10 or 15 minutes of walking/subway then it's great. It's in a consumption area with good restaurants nearby, including a few pedestrian only streets.
George: He was a great host, offering to help with things like booking a cab to the airport if we wanted one. He was responsive and checked in to make sure everything was going well.
All things considered, I recommend the apartment.