This study investigates the experiences and perceptions of Korean college students regarding the use of ChatGPT as a tool for revising paragraphs in a general English course focused on academic writing skills. A total of 71 student participants completed a survey questionnaire about their perceived benefits and challenges in employing ChatGPT for writing revision and anticipated teacher roles in the process. For data analysis, descriptive statistics and thematic analysis methods were used. The findings reveal a positive reception from the students. They expressed satisfaction with the use of ChatGPT for their paragraph revisions, indicating that its feedback was helpful and trustworthy. The benefits of ChatGPT included the convenience of its instant responses, unrestricted use across time and space, and accurate error correction in areas such as vocabulary, grammar, and paragraph flow. Some challenges were also raised, such as the lack of error descriptions, incomprehensible feedback, misalignment of responses, concerns about diminished authorship, and uncertainty about learning effectiveness. These findings suggest the potential of ChatGPT as a supplementary tool for writing revision, emphasizing the importance of a balanced approach between AI-driven and human feedback. The study also underscores the crucial role of teachers in effectively integrating ChatGPT into writing instruction.