The house is very close to two metro stations, supermarkets, bakeries and whatever else you might need. The neighbourhood is calm except on Thursdays when there is a street market and you might get the unfortunate to it be happening right in front of the house.
Everything but the mattress is apparently new. The tv with Netflix and YouTube is a plus, even though the internet is not the best for working, the tv is connected by wire so it works okay.
The kitchen lacks amenities from the basics, such as soap and sponge to do the dishes, to good to have things, such as wine opener.
To summarise, good value for money if you are spending around 2 weeks or less in Athens.