More effort needs to be made with regards to documentation, especially for File::Slurp users looking for alternatives. Why is this module needed? What are the differences with File::Slurp? How do the functions behave on I/O errors (since err_mode option is not supported)?
Supposedly this was written to be faster and fix some api niggles in the venerable File::Slurp. But the documentation doesn't even mention any of this. And it doesn't even try to maintain any compatibility with the majority of the File::Slurp api that was perfectly fine. So I'll stick with the original File::Slurp for ease of use over the minor performance gain and annoying api changes of this one.