I came to this module while searching for a Perl alternative to jpegtran (a UNIX tool). So far I am using it just to remove all metadata for all images during the build-process of a webpage. Works fine!
In addition to the IPTC info editing offered by the older and reliable Image::IPTCInfo, this module offers access to other forms of metadata - EXIF and PS info.
Is it faster for IPTC info? I would like to see a comparison of benchmarks.