George is a good host. He is very accessible by message if you need him. The space is nice and large for the price. The balcony would be really nice too when there are not record-breaking temperatures outside.
The only thing that can be approved is that the A/C unit is not very strong so if you are multiple people in the flat, your own body heat will likely overpower the chill of the A/C.
From the apartment it takes about 25-30 minutes with a combination of walking and metro to reach the acropolis and the historic center at Monastiraki, which isn't bad but just keep that in mind while booking.
I would likely stay here again.