What is the author's style in Bad Influence by Judith Ortiz Cofer?

"Bad Influence" is a narration of Rita's summer according to her point of view, the account of which shifts over time. At the opening, Rita's narrative is intensely critical, sarcastic, and very funny. She is a classically exasperated, smart aleck teenager with typically hyperbolic, derogatory opinions about her elders. Everything about Puerto Rico is insufferable in her eyes until she spends a beautiful morning at the beach with her grandmother, while Papá Juan attends to Angela and her mother.