Reviewers mostly see GitHub Copilot as a strong in-editor helper that saves time on boilerplate, repetitive code, syntax, and learning, while helping developers stay in flow across tools like VS Code and IntelliJ. Several say it has improved notably and works well with mature codebases or established patterns. The main complaint is reliability: suggestions can be wrong, generic, buggy, or need refinement, especially on project-specific logic. For bigger multi-file tasks, some reviewers still prefer tools like Cursor or Claude Code, though Copilot remains the preferred always-on autocomplete layer.