Dave Barry Does Japan

Is this comedic tour of Japan discreet, tasteful, or politically correct? The answer, thank god, is Naaah! Yet Dave Barry's travelogue never grows mean-spirited, and he's always ready to laugh at his own country--and by extension, himself. An example: "I understand that, even if two Japanese have worked together for many years, neither would dream of using the other's first name. Whereas Americans are on a first-name basis immediately, and by the end of the first day have generally graduated to 'Yo, Butthead!'"