Xenia is an awesome host! She really goes the extra mile for her guests, and has done a good job to anticipate her guests' needs in how she has equipped her grandmother's old house, and in the way she prepares for each guest. You can tell that she spent a bit more money and care on renovating and equipping the home than might make financial sense for a holiday rental, but the result is definitely worth it.. :)
The home consists of two buildings, with beds and living space in one, and kitchen and bathroom in the other. It's located a short walk from Apollonia up the hillside, on a beautiful traditional stone path running between the white houses on the hill. Be aware that the church bell might wake you up from late afternoon naps though.
We spent three relaxing days here, and it was a fantastic base to use to explore Sifnos. Thanks Xenia!