Amazingly underhyped. Search::Tools helped me knock out the results UI layer of a tiny custom search app in minutes.
I like the interface, and the way the system's constructed as a set of tools, each of which you can choose to use or ignore, giving the user full control.
All the pieces just work magically out of the box, and I love all the little touches to enhance backwards compatibility (e.g. Unicode transliteration).
