MIME-Lite works as expected -- it's great and I've been using it for years.
My beef is that it's bloated. Years ago, it truly was "LITE". That's why I used it. These days, it has far too many dependencies that aren't included in standard Perl distributions. Thus, a CPAN install of the module is almost laughable with all the extra modules that are needed. It all works in the end, but it just seems much more inefficient than it should be.
In my opinion, any package with "LITE" in the name should not have any dependencies that aren't included with a standard Perl distribution.