Not really usefull

First of all, the Shortcut did not work. I had to manually add them in html, so the only benefit was, to be able to chose by the pictures without searching for documentation and copy&paste from elsewhere.
But it made my site incredible slow. I mean slow like I could go make me a coffee while waiting for it to load, while it’s normally less than 0.5 seconds.
I tested to place some of the icons I need and then just deactivate the plug-in, cause if it doesn’t have to run constantly and than not slowing down, i could live with that. But no…! Not only my site was still so slow, the font was not working anymore, too! Which is ridiculous, cause I did not used the shortcuts (as they didn’t work…) but inserted the html and if the font-files still there and linked, it should be working. In conclusion, it does not even install the fontfiles properly!