It was wonderful the way Zoi helped us reach at the place amidst heavy rain & then guided us for how to explore Santorini.
Although, I would like to highlight a few points. The location isn't a prime one, and it's quite far away from thira & Oia. You would need a car to travel anywhere on the island. The wifi didn't have good coverage & wasn't working well most of the times. It was very cold inside the cave, and heaters didn't work very well.
Having said that, she was extremely supportive & nice to us.