"Nothing is more challenging, nothing less sentimental, than the invitation of spirit to become who we are and not who we think we ought to be."
Thomas Moore
What a great idea! Haven't done it it awhile, but back in the day I spent quite a few weekend music festivals in leaky, cramped and odorous tents(there was no way I was bringing my top of the line backpacking tent to a concert). A couple of these would have really sweetened the experience.
But there's another application for these: temporary shelters for refugees, disaster victims, etc. Cheap, lightweight, easy to ship. Perfect! And the company also makes showers and toilets to go with the shelters.