Hello,
You are right, it does work with TTF theme for example. I edited my review. I’ll leave it as a warning notice for Elementor users.
The plugin actually works up to a point in Elementor. Only the message is’t displayed.
I’m a bit surprised by your comment about Elementor compatability because there are many other plugins that change the output of Elementor Woo specific elements. If I were to contact Elementor and ask for compatability, what is needed exactly?