Althea is a beautiful camper van, with lots of amenities to help make your time in Hawaii even more comfortable. The van is small enough to fit into any parking spot or garage you want to go to, while large enough to be fairly comfortable when laying in bed.
Bailey (and his friend Jared) are extremely accommodating and helpful hosts, who gave great advice and did a good job stocking the van with a camping stove and hammock.
Some words of warning about staying in a van on Oahu: you absolutely need to plan 2+ weeks ahead of your trip to know where you will park for the night. As noted, sleeping in a vehicle on public property is illegal, and you will have a police officer knocking on your window at night to remind you. Most campsites are booked early, or open for reservations ahead of time. You can stay at Uncle Mike’s campground for $45/night if needed, but the campground isn’t in the best location to wake up on the North Shore or near Honolulu.
Smaller warning, the van gets warm at night if you have more than one person inside. I recommend using mosquito netting over the door and rolling a window down at night to cool off.