You really need a vehicle to move around the island! And sometimes paying for a hotel and a car can be a little expensive there. so being able to sleep on your car and crash anywhere you want the beach, campgrounds or even a volcano it's incredible experience! Cecily was a great host!! she replied our messages right away and made us some cool recomendations. The only missunderstood we had is specifying we would sleep inside the van and not in tents like they packed us in the van. That weekend Maui was really windy and sleeping on a tent outside was not an option. so we had to fit so many things every night in the front part of the van like a big bin and a plastic closet, that it took us a long time every night to do it. But maybe just specifying number of people and sleeping accomodations of your choice, I think you will have no problem at all, since Cecily is so accesible. She even let us return the van a couple hours later so we would enjoy our last day till the max and not wait at the airport so many hours. She also though of great details like packing for us all kitchen accessories you will need to basic cook, toilet paper, aluminum paper, first kid aid etc so many useful things!! Van is in great shape and comes with everything literally everything you need to have a great road tripping experience at Maui :)