Worked out of the box.

As of today Dec 8 2019 - WP version 5.3 it all works great! I cant thank enough to the developers!

Thank you very much, just what a I need: more powerful filters to manage my posts.

UI is nice enough, but it didn't work properly for mee, and support orum seems inactive. Support thread: https://wordpress.org/support/topic/does-not-work-with-custom-taxonomy?replies=1

Going back to Easy Filter now that it's back in the repository. I tried this plugin as a replacement, but it only works under very specific circumstances, it seems... The issues: 1) The tag filter doesn't work at all (support thread). 2) The plugin's category filter prevents custom taxonomy filters from working, so must be disabled (support thread). 3) The plugin doesn't work on media taxonomies, even though it's an available option in the settings. In trying to fix this, I also noticed that the plugin doesn't retain settings if changes are made via the Editor (support thread). All those support threads, not a single reply from the plugin author...

This plugin was supposed to do what I actually wanted to achieve. The dropdown list shows up, but up selecting a value and pressing "Filter", it doesnt actually do anything. Too bad!