The spot is awesome. I've never stayed in a cave before, and it was such a unique experience - I'd highly recommend.
It's quite spacious, and easily accommodate a kid or two in the central space since there is an extra bed and two more additional daybeds. The only slight inconvenience for us was that we are both side sleepers and the master bed is very hard, so it wasn't the greatest sleep.
The house is stocked with espresso machine, welcome wine in the fridge and a yummy local cake. Thank you!
The two patios have gorgeous views of the caldera where we stayed for hours, just reading and drinking wine.
As everyone else mentioned, there are quite a few steps to get to the place, but after climbing up and down a few times, I swear our legs already got stronger and it was easier and easier to do it. If you have issues climbing stairs this probably isn't the place for you, but otherwise the climb is totally worth it!
Overall I would recommend staying here!