The description of the route in the book backed up with pictures made my experience almost first hand. While capturing some of the events that somehow relate to the main story, like Tenzing and Hillary's climb in 1953, they are limited to the extent where the reader never loses track of the central plot. Also, it moves very quickly.
Particularly interesting was to read how Beck Weathers rose up from his icy grave and made it back to summit camp. I also liked the analysis of the tragedy - there were serveral points made but the author did not attempt to make any judgement.