We stayed for 4 nights in the Lebowski and had a great time overall. It was so convenient to have all our belongings with us, rather than in a hotel, so we were able to explore the whole island. We stayed in Malaekahana, which we really enjoyed. Vehicle camping spots #5 and #7 have a nice view of the water. The bed is comfortable, and (with few exceptions) everything felt very clean. The van is an awesome idea, very well thought out and lots of little conveniencecs. Some of the supplies had not been replenished - we were given 2 empty soap dispensers, and an empty container of cooking oil. The van was pretty easy to drive, a bit bigger than a car obviously so needed a bit of extra space to park. I thought it did pretty well on gas - we drove for at least a few hours every day and went through about 1/4 tank each day. It cost about $90 to fill it back up before drop off.
As others have mentioned, there is definitely some deferred maintenance items that would've made the stay better. The driver's side window does not go down which was kind of pain. The sliding door is "sticky"... a bit difficult to open and shut - it has to be slammed to really close all the way, and often would not open from the inside, we had to climb through the front about 50% of the time. The doors can also only be locked and unlocked from the key - the lock/unlock buttons on the driver and passenger door do not work... just a minor annoyance. The tire pressure light is on, although Patrick assured us it was just a bad sensor.
Renters should be aware of a few things... #1, the location shown on the Airbnb map is not accurate. The pickup location is shown on the map as being pretty close to Honolulu/Waikiki/the airport, but If you read the fine print, the pick up location is actually about a 45 minute drive from that area. Not sure why there are 2 different addresses listed but it caused some confusion. #2, the "magnetic" blackout curtains have no magnets left, so they're essentially useless as there is no other way to hang them. We stayed in Malaekahana, so there was no need for blackout curtains, but it would be very difficult to stealth camp without the curtains as even using your phone from the inside at night will make it clear that the van is occupied. #3, The battery makes a loud alarm when it gets low and it's likely to occur in the middle of the night while you're sleeping. It was a bit disorienting to be woken up by this alarm with no idea that it just meant low battery. To shut it off, you have to exit the van and crawl under the bed from the back. The battery lasted all night for us except one night, which was after we had used the hot water heater. The other nights, we used the fans and charged our phones all night long without any issues running out of power.
Finally, I would recommend bringing your own snorkel or finding a way to sanitize the ones provided. The ones provided were covered in sand and hair. This was a bit concerning for us, regardless of the fact that we're in the midst of a global pandemic, these had obviously not been cleaned since being in someone else's mouth. Gross.
Overall, we had a great time. Cost wise, once you factor in the added insurance, gas, Uber to/from the pick up location, and camping fee, it was only slightly less expensive than a rental car + hotel. But the experience was great, and having all your things right there and not having to drive back to a hotel was very convenient.