Well our visit didn't start well, as Maria said that the porter would pick us up at the bus terminal in 10 minutes, which became more than 30 minutes, even when I had detailed the type of car that we were driving. Once he found us, he was very helpful in carrying two of our luggages down 96 stairs to Maria's place. He was also helpful in showing us a place to park the rental car. (A rental car is necessary on Santorini, by the way. I don't know what we would have done without it. A good local one that we used is called Spiridakos.) The cave house is quite nice and a good size for us being two adults and two teens. The bathroom is separate from the cave house, (the blue door that you see on the left in the cover photo), but it is private. Just not the most convenient for middle of the night use. It is also quite damp inside, but there is air conditioning, which we didn't need to use that much because of the natural cooling effect of the cave. There was also a dehumidifier I think, which I thought was another air conditioner, so we didn't use it, but we should have used it to cut down the humidity. There is no cross ventilation as it is a cave house. The communication with Maria was prompt, and she came to meet us in person the morning after we arrived to answer any more questions we had. She also kindly supplied beach towels upon request, in addition to bath towels and the house was cleaned daily by a cleaning person. The 96 stairs to go up and down from the house took a bit of getting used to, but if you want some exercise, this is one way to get it. The porter Vasili also helped us carry our luggage up the stairs when we left. The view of the caldera sitting on the terrace was amazing, especially early in the morning and later in the evening when there was some shade. Oia was crazy packed with tourists in mid August, as expected, but it was too much at times. We preferred our stay in Firostefani for this very reason, as there were less people around. But Oia is Oia, and there are many things to enjoy there and gorgeous scenery and very nice restaurants in short walking distance. I recommend snorkelling around the small rock island near the Port of Ammoudi in the caldera to swim above astounding dropoffs where you cannot see the bottom even in crystal clear waters!