It was really interesting to read about both the back story of the expedition as well as the expedition itself. A crew accompanied them to film the experience for a documentary, also called "Chasing Shackleton." I appreciated learning the history of Shackleton's original expedition alongside the attempt by Jarvis. There were beautiful photos from both expeditions.
As someone who really, really hates being cold, I can't imagine willingly putting myself in that situation, especially using the period clothing and equipment.