This is an excellent option if you’re looking to explore lots of O’ahu on a budget. We saw much more than we would have if commuting back and forth from a hotel and saved a lot of money.
The Glamper has all the basic necessities - a place to sleep, stove, chairs, sink, etc. The beaches all have bathrooms and showers to rinse off for the most part. We rented a paddle for the week and had a blast.
The only hiccup was being asked to leave during the night at one of the recommended parking spots. Be aware that technically it’s illegal to sleep in a vehicle at public places in Hawaii but most of the spots Daniel recommended were totally fine.