This is an amazing house just in the center of Athens. I stayed in Maria's apartment for one a half month and I can't complain about anything.
Location is perfect. It's just next to ancient Panathinaikos Stadium, which is only 10 min walking distance from the Syntagma square, where you can find everything. There is also the bus option which is passing by just in front of the building and you can reach Syntagma in less than 5 min by taking one of the buses going that direction. Thanks to being very close to the Parliament and Presidential house, it is probably the safest neighborhood in Athens. You can walk around at any time of the day without concerning about security. You can also reach almost all of the sightseeing places on foot. There are couple of small market and a Dominos pizza store just near the building and one supermarket in 5 min walking distance.
Apart from being such a perfect location, the apartment offers you a great comfort with all the amenities you can think of. There is an incredibly comfortable bed and great balcony with a nice view.
Also Steall, the house manager, is a great host, whom you can contact anytime if you need anything. She will always be there for you.
It's for sure that I will be staying in this place in my next visits to Athens.