We rented a car and the place is about a 15 minute drive from the airport and very easy to get to. The driveway is large and parking was easy. I highly recommend this place if you rented a car, which turned out to be a great decision.
The property itself faces East (not the Caldera side), which I didn't realize, however the view is excellent. The deck on the roof, however, faces West and has absolutely incredible views of the Caldera side. We used the hot tub multiple times and the kids loved it. The roof deck is directly on a walking path/street, so despite being slightly above it, people walking by could see onto the deck, so be aware of that. It's not a big deal because most places in Santorini have this challenge given the way everything is constructed on a hillside.
The unit itself was spacious and stayed cool during the day. The main bathroom is in the unit and there is a second, full bathroom with a shower that is about 50 ft from the front door in a separate little building. That seemed weird, but it's very private so wasn't an issue.
The location is excellent with several restaurants about a 2 minute walk up the path and a great bakery/market about a 5 minute walk away as well.
Overall an excellent choice for a family with plenty of space and great views from the roof deck.