Documentation is far from perfect for anything remotely sophisticated. One often runs into issues with a third-party library that comes down to not understandi

Documentation is far from perfect for anything remotely sophisticated. One often runs into issues with a third-party library that comes down to not understanding what's going on under the hood. In cases like this, it's really helpful to be able to look at the source and see what the issue is, you can also (in some cases) track PRs that address issues you are encountering. I've found this numerous times with paid third party deps.