Looks like it is doing a superb job. I haven't noticed any problems with the Web pages I visit, and occasionally I check out what the Privacy Badger blocks. On some sites I see amazingly horrifying number of trackers!

I have been using this for a long time, and it works very well.

This add-on is so user friendly that I set it up on computers when I help people do browser installs. For the people who cannot configure their own browser correctly, this is user friendly enough to not notice, so it is a giant win for privacy.