GitHub Copilot is a coding assistant tool that leverages AI to aid developers in their coding tasks. User feedback indicates that Copilot excels at handling low-to-medium complexity tasks within well-tested codebases, such as feature enhancement and debugging. However, concerns arise regarding its reliability in code architecture, as users report instances of generated code lacking adherence to proper structures, potentially adding technical debt. Additionally, there are complaints about performance issues, with async operations causing delays that detract from productivity, leading some users to cancel their subscriptions and consider alternative models. Despite these challenges, many users still find value in Copilot, especially when integrated with IDEs like VSCode, where they can optimize their coding processes. The blending of Copilot with various LLMs offers user choice and customization, though it poses risks around dependency management.