We are looking for a way to filter multiple post types and categories within WordPress and FacetWP looks very close to what we are hoping for. I'm not sure 100% that it's the correct plugin but you guys know it better than I do, hence the job.
On the face of it it appears to filter the way I want it to based on their demo site but I have a fairly unique use-case (I think).
We want to do the following:
1. A search field that people can enter a search term into, if they so wish
2. Allow users to choose a post type (Fishing/Hunting/Destinations) - each of these post types have their own taxonomies, a set of categories basically relevant to each.
3. Now a user has chosen a post type, load and display all categories for that post type (taxonomies named fishing_categories if fishing was selected, hunting_categories if hunting was selected etc).
4 With those now selected, offer additional filtering options such as a search field, author field, tag field etc.
Number two and three on my list are most important. If this plugin can achieve the above, I would be interested in giving this out as a job just to set it up and get it working for me. No styling, just a working example of the above. Once I have that i can style things and tweak things myself in due course.