Github Repo vanished making it closed source, very untrustworthy. Then, as for everyone above and below me, it stopped working a while ago. Regression everywhere, blocking seemingly everyone but paying customers from using their service, advertised as having a free part.
The extension window itself also takes up to 5 seconds to open, making me wonder what it's even doing in that time, when it worked fine before.
They are pushing their pay model the hardest they can, even locking their entire Discord to paying customers. Do not use this.