Felix Rodriguez, an anti-Castro Cuban who was sent to assasinate Che, said he was a fascinating man he wanted to know better and felt sad at having to hunt him. He protested at Che's execution.
With that insight, I eagerly read The Motorcycle Diaries. They are very well written, amazingly entertaining, witty and occasionally insightful and the translation is not only excellent, but well-referenced where terms are transliterated.
Personally, I wound up detesting the little troll. He and his friend masqueraded as experts on leprosy, which they milked for guest space and food. They stole liquor, whined about hospitality until they got even better fare and generally were locusts on the local economy. Che complains mightily about bureaucracy and control that keeps him from his wants (The lack of border stops some places, which made it harder to cadge rides from passing trucks), yet makes a point of mentioning his illegally carried revolver and knife that he smuggled through other border checkpoints (and heck, who wouldn't, when traveling like that?). In other words, "If I want it, it's good government. If I don't, it's bad." The true moral dishonesty of the Latin communist comes through.
And yet...he was honest enough to preface the book with a note that it represented only a momentary view of his life at that time and place. He didn't edit out any of the bad. The contrast and complexity is fascinating, and I'll have to find more to read about a no doubt highly intelligent man.
Love him or hate him, the book is honest in its documentation and pulls no punches. It's a great period piece, a great low-budget travelog, and a journal of a young, brilliantly stupid college punk like lots of us were. I can't recommend it highly enough. If you want to understand the Latin communists or Che, you must read this.