"Remarkable"
Prescott is remarkable in his eloquent diction and fast-moving narrative. It's true that this account is "pre-PC" in the sense that he uses terms like "barbarian", but it appears very accurate and Prescott tries to let actions speak for themselves, rather than projecting his own viewpoint into them. Prescott's focus seems to be creating a well-written and enjoyable readable account rather than placing blame or advancing a political agenda, as is sadly the case with many contemporary historical accounts.
In summary, great traveling reading for the student of history or casual listener...well-written/adapted work and similarly good narration.