We stayed at two of Rena's different caverns and both were fantastic! Despite the flight of stairs we had to walk up and down, the magnificent view and poetic feeling of the place definitely made up for it. The beds were comfy, with a large supply of towels and toiletries. She even provided us with indoor slippers, seemed somewhat like a hotel even! Not only that, but she gave us some wine and dropped us a delicious pastry in the morning. I would definitely recommend Rena's place if you are looking to experience Santorini at its best.