What is the author's tone in Hell's Angels: A Strange and Terrible Saga by Hunter S. Thompson?

The text is written in a personal and informal tone, which belies its serious nature. Thompson does not use difficult language or dwell upon erudite concepts. He tells it like he sees it. The result is a portrayal of Hell's Angels as rarely sympathetic, sometimes likable, often criminal, and always filthy. There is no doubt that Thompson knew and liked several angels, just as there is no doubt that the same angels always viewed him as an outsider with an agenda. The text is festooned with slang and frequently interrupted by topical quotes from a wide variety of news sources or contemporaneous popular songs. The resulting tone is engaging, interesting, and particularly accessible.