We were 3 couples staying at the villa for one week.
The cave house is very nice, but smaller than we expected. The pictures make it look larger than it is, but we were ok with it - as it is so charming.
The bedrooms vary in size (small, medium, large). 2 have an adjoining on-suite bathroom. The other bathroom has a very low doorway (in which many heads got banged on the way in).
The front courtyard is lovely with lots of flowers and is wonderful to sit there in the evening with candles and wine!
We didn't realize that the pool was not connected to the house (but a few steps up the road). The pool was also smaller than we thought from the photos but we also enjoyed the area. Suggestion would be to have a coffee table placed next to the benches, so you could enjoy food/drinks there too.
The kitchen is well stocked and everything worked wonderfully. We were very pleasantly surprised that we had a welcome package of fruits, meats, water etc. Such a thoughtful touch. We were able to do some laundry while we were there, which was super helpful.
You definitely need a car here, as there is really nothing within walking distance except for the restaurant Metaxi Mas (which was our favourite - GO - the food and service are AMAZING).
Mark was really super helpful with going over all the details of the property, giving us tips on places to go and restaurants to eat at. He also helped us arrange cars. It was fantastic to have that kind of help at our fingertips. We all definitely enjoyed our stay here and would highly recommend it to friends or family travelling to Santorini that don't want the hustle/bustle of Oia.