The house is large, well decorated and well situated. It's clean and fresh. It has a big inner courtyard and a private garden where you may encounter lovely cats. There is an additional patio with a view over all the village and Zas mount.
The two beds are big (king size?) and some benches can be used as beds. I guess it's suitable for 4 adults and 2 childs / youngs. The dinner room and kitchen are usable and well furnished. The main bathroom (bath, sink, WC) is good and the additional one (only a sink + WC) has also a washing machine.
Nikolas and is family are generous and very kind. We were ravished by their hospitality ( thank you Nikolas for our discussions at Platanos :-)
I hope you will experience Naxos / Filoti as we did. Zeus house is certainly a good step toward it.