looking for a widget/plugin to use to filter book review results

Hi There,

I am looking for a filter I can use for custom post types/taxonomies as your plugin provides. So for instance, we have a taxonomy of genres, age, social issues for example. I want the end user to be able to search for books for that are 1) General Fiction, for Young Adults, and teach diversity. So with the current filtering I see on the demo site, it seems like you cannot fine tune search results. If that is indeed the case, do you know of a widget/plugin that works well with your plugin that you may have come across? Thanks.