Don't know enough to call it either way, but The Motorcycle Diaries was ace.
A committed believer in his ideals, and prepared to die for what he believed in.
The following he enjoyed and the reverence in which he is still held is testament to those ideals if not some of his methodology.
Allegedly, his last words before being executed were, "shoot you coward, you are only killing a man." Meaning they could kill him, but not his ideals and the socialist movement in Cuba and elsewhere that he had nurtured, led and tried to take to other countries.
He tried to export revolution to the Congo and to Bolivia but with little success and without much support from Fidel who tried to talk him out of it and get him to stay in Cuba. Che even renounced his honorary Cuban citizenship before leaving for Congo in the mid-60s to show that he wanted international revolution beyond single countries.