The place is pretty, well positioned in Batsi, and we loved the farm animals next store. BUT... we were pretty disappointed that there was NO potable drinking water. We were suprised as everywhere else we stayed on the island had drinking water. I forgot to use bottled water to brush my teeth one night and my gums got a little bacteria infection + both of our eyes were bloodshoot and irritated from showering in the water. Not exactly luxurious.
Otherwise Kostas communicated well. You will need to arrange a set time to meet them for check in, which isn't ideal for flexible travelling, but all in all a good stay otherwise.