We (two couples with three kids) spent ten quite cool April days in this great villa. Although it consists of two separate apartments we only actually used the big upper apartment, which had enough room for us all and has all kinds of amenities, like a pool, heated floors (April!), big beds, a ChromeCast, free and fast wi-fi and an entertaining selection of books, vinyl and dvds.
The kitchen deserves to mentioned explicitly: it is equipped with a big freezer and all kinds of kitchen appliances, like toaster, microwave etc. Our fantastic hosts even left us condiments, a couple of beers and enough food to get by on the first day/night in.
The villa is situated ideally to be able to visit great sites around Attika (such as the Temple of Poseidon or a great national park).
All in all this is a great place to stay with all amenities to make even a bigger party happy. Our hosts were fantastic, gave us many tips and hints on which places to visit, and we could call them anytime we needed something.