We start with the negatives since they're important:
-1 star: Not a hotel experience since it's actually forbidden to sleep in the van in Hawaii besides on one campsite on O'ahu (Malaekahana which is booked out fast). So if you're not into stealth camping it's not an AirBnb.
-1 star: Communication was slow, complicated, repetitive and confusing.
My car had an alarm issue and needed to be returned earlier. After ignoring my concerns at first the early return was handled well.
Despite all the important negatives that can dampen the experience the camper is well equipped and it's a great way to explore the island. If they start to be transparent about the van regulations so you either can book the camping side early or are ok with stealth camping and improve the communication significantly than it becomes a great experience.