All you need is to remove the front wheel on the jogger, station two people on the fork mount, another person on the rear handlebars, and now the Chariot Cougar doubles as a palanquin. Palanquin mode is very useful, enabling you to negotiate stairs, tree roots, steep climbs, and other obstacles normally considered impossible even for off-road capable trailers. In fact, if you retain the front wheel, you can convert back to a jogger right after the tough section, enabling you to remain on your way.
Bowen seemed to enjoy palanquin just fine, only complaining at the end after he got removed from the Cougar's safe mosquito mesh netting only to be immediately bitten by a mosquito.
If you're not an outdoors person, you'll probably be unlikely to be swayed by the existence of palanquin mode. However, if you've considered abandoning a hike because of tree roots and have a fair number of people with you, you might discover it to be a nice bonus "Easter egg" you didn't plan for.