The apartment was clean and had all the basic amenities you would need. There was air conditioning which was very much needed in the 49 degree heat!
The bathroom was clean and hot water was available.
The apartment is located about 10-15 mins walk from the Acropolis. Athens is hilly so you'll need good walking shoes.
It's in a residential area so it's quiet at night. There's a bakery very close by which seems to always be open and a mini market about 3 mins walk away.
Be careful with your bags/rucksacks on the metro. Stay vigilant for pickpockets!