It made some site not work well at all. Just have the reflex of turning it off if you encounter weird behaviours from your browsers. Appart from that, I guess it works as advertised.
Love Dark Reader, wish it worked on all websites. Strangely enough, Dark Reader doesn't work on ProductHunt. Or I should say that some of the functionality doesn't work. For instance I can't see how many stars I've rated this product right now. Luckily it has an easy toggle on/off switch. Oh, look! I've given it 5 stars! It's a big help if you're on the computer all day.
It's only great because it's truly open source (all features are completely free). I wish this leveraged more tech instead of manual contributions. This can definitely be elevated from the logic I've seen in the code!