The good: This was by far the most budget-friendly option I could find for our stay on Kauai. The set-up is clever, and it meant we did not have to travel with our own camping gear. The mattress was comfortable, and the 4Runner was a nice vehicle to drive.
The not-so-good: We had a lot of VERY rainy and windy weather during our week on Kauai, and unfortunately this system just could not stand up to the weather. The tent was brand new, but low quality. It leaked very badly in the rain, and everything inside it got soaked. The fuel cannisters were almost empty, and the stove needed repair/adjustment before it would light. At some campgrounds we had to sleep in the tent, and the mattress and bedding got totally soaked with rain.
If you are planning on using this primarily as a place to sleep on the beach in good weather, this will work for you. If you are planning to go to places where you need to use the actual camping gear, I'd recommend exploring other options.