How does Tanimura characterize the Kansai dialect spoken by his friend Kitaru?

At various points within the story, Tanimura comments on the nature of the Kansai dialect. At one point, he describes it as breezy. At another, he implies that it denotes the language of a country bumpkin. He also notes that while Kitaru had grown up in Tokyo, he had become fluent in the Kansai dialect with the specific intent of being able to converse with other fans of the Hanshin Tigers, his favorite team. Overall, Tanimura characterizes the Kansai dialect as spoiling every positive impression Kitaru had made to someone upon first meeting them and opening his mouth.