Not sure where I should start: breathtaking caldera view, lovely hostess who is always ready to help you out with anything, fantastic walk by the caldera to the Fira town, best sunset in the whole world right at your front porch, amenities a small hike up the steps, super family friendly(my kids just loved it) and a peaceful cave style house. Another great thing is you can leave your luggage past your check out in the storage area if you have some extra time to kill before your flight or ferry. It was very helpful for us.
Make sure you talk to Elvira about help for bags if you have a lot of luggage. We had quiet a task bringing our big suitcases down to the house. But Elvira arranged it for our way back so it was pretty easy..
Greek folks are so warm and their hospitality is something to experience. It was truly awesome and trust me the pictures don't do justice to the view.