It's a perfect rental space for a couple. It can accommodate 4 people, but it would be more comfortable for 2.
It is easy to reach from the airport. Ticket is 9 euros one way/ per person, direct line. Takes about 45 minutes to get to the station closest to the building and then another 10 min walking. It is located bit peripheral to the city center, which makes it perfect because it is quiet and yet close to everything.
Within 5 min walking distance you can find a pharmacy, small store/coffee place, a supermarket, bakery and a petrol station. There is even a recycling container across the street.
Takes about 10 min to reach Apostolou Pavlou street. That is where the restaurants and coffee shops start; for Acropolis ticket office you go right, for Agora of Athens and shopping area you go left.
Apartment looks exactly as presented on the pictures. It was clean, which is the most important thing for me. Amenities that are mentioned in the description are all available. You will even find cotton ear buds and sanitary pads.
Useful info- water heater takes about an hour to heat up the water, which is enough for 2 people to have a shower. If you don't use it, water will most likely get cold (especially overnight).
Communication with the owners was great! They replied within an hour every time. They even sent us a list of restaurants and coffee places with good reviews. They are super helpful, so if you have any questions don't hesitate to ask.
Overall, it's good value for money.