Works well enough, unfortunately not with youtube, no matter what "lua" you download. However, this seems to be more a problem coming from youtube rather than this extension.
And it does work with most porn sites, and it actually works and loads quite well within VLC, without much lag, and jumping around is working better even than on the website video stream itself even though my internet connection is not good at all.
Only criticism is that sometimes it completely wrecks the GUI of VLC, hovering, the video being outside the main interface etc. This could be fixed in my opinion.