The benefits of integrating ClangFormat into a toolchain include eliminating time wasted on discussions and enforcement of code formatting. To achieve this, it's essential to obtain buy-in from the team, assemble a bikeshed squad with decision-making authority, set ground rules for the decision-making process, and establish a tip of the spear to take the first pass at configuring ClangFormat. The tool has limitations, such as not supporting certain formatting rules or dealing with special cases like macros. To overcome these challenges, it's recommended to adapt existing rules to match what ClangFormat is already capable of, rather than trying to customize it. A wrapper script can be used to simplify the process and improve throughput. When reformatting an entire codebase, it's essential to consider the impact on users and plan for a "flag day" where all changes are committed back into the repository. This involves preparing a functional spec that outlines goals, non-goals, and implementation plans, as well as providing instructions for following the new development workflow using the tools.