Reviewers say Codespell sharply speeds development while improving code quality. Users highlight accurate, context-aware unit test generation, clean docstrings, and optimization tips that reduce bugs and rework. Embedded IDE integration (notably in VS Code) keeps workflows fluid, with side-by-side suggestions and “move to cursor” placement aiding quick reviews. It reliably scaffolds APIs, infrastructure snippets, and base project setup, maintains naming conventions, and explains fixes for faster learning. Some note optimization shines most on simpler cases, but overall productivity, debugging, and documentation gains are consistently praised.