Lovely house, better and bigger than the photos, in the heart of Exambela. No traffic, one small supermarket, one very fine live music cafe/restaurant, easy access to Apollonia, with restaurants and bars and shops for all tastes. (Of course most of them were closed when we there, the last week of October). Kostas himself couldn't be nicer or more helpful.
Sifnos is one of the two or three best islands in the Aegean for hiking. And the south coast beaches, protected from the prevailing north winds, are also hard to beat. Very strongly recommended, island and house.