Using fs.promises provides cleaner, more readable code for file system operations compared to callback-based methods, especially when handling multiple sequential file operations. As the creator of CoreUI, a widely used open-source UI library, I’ve modernized countless file processing scripts using fs.promises over 25 years of development. From my expertise, the most effective approach is using fs.promises with async/await syntax for synchronous-looking asynchronous file operations. This eliminates callback hell and makes error handling more intuitive.