I've found it really helpful in rummaging around an unfamiliar codebase, and pointing me to relevant parts of it. The application of patches is hit and miss. I

I've found it really helpful in rummaging around an unfamiliar codebase, and pointing me to relevant parts of it. The application of patches is hit and miss. If there changes are across multiple files, I find it gets stuck going in circles. But still been a definite net positive in terms of productivity.