The new issue (#58) of UK magazine Linux Format contains a review of the Badger book. While they pick up on a few problems, the review is generally very positive (they give it 9/10). The last paragraph says this:
This is really an exciting area for Perl and, and these three authors are clearly passionate about the topic. The writing is sharp, to the point and - yes, this might sound odd about a topic like Perl templating - exciting. Any monkey could write a book on TT in 100 pages discussing what it does and how it works, but what these three have managed to put together is an explosion of ideas and evolutionary 'wow factor' that makes compelling reading for any Perl programmer who has looked at JSP and felt a twinge of envy.
"An explosion of ideas and evolutionary 'wow factor'" - I like that a lot