This plugin was decent in the past. It may have had a few bugs, but generally worked well and made importing and using SVGs to create interactive maps very easy. It also had hooks to bring in data from Custom Post Types into the popups/tooltips. However, the newest (and only) update in the last year+ completely changed everything. Although it may be an improvement in usability and no longer relies on jQuery, it is not backwards compatible. So anyone upgrading BEWARE! The previous shortcodes no longer work, custom CSS is gone and the WP hooks and filters have all changed, and there is little documentation. Unfortunately the time it will probably take to redo all of my maps with the new version is not worth it, so I am reverting to the former. Perhaps when there is better documentation of these things for the new version I will reconsider.