This is a pretty simple plugin. Just install it, then use the Simple Query Shortcodes plugin (this is a dependency) to enable the shortcode.
Then, you can use a shortcode like this (showing most parameters):
[loop post_type=partners colums=3 taxonomy=partnercategories terms=termslug layout=partners posts_per_page=9]
Here's simple usage
[loop post_type=partners columns=3]