Great at what it does, but it's annoying that it also overhauls the css of quite a few sites, like hiding sidebars, adding half-baked animations, or breaking YouTube every once in a while. For each site, you can turn off each of many css changes individually and separate from the site's transparency setting which is nice, but they're all on by default for every site and persist even if the big "skip styling for this site" toggle is on. (Should just be "enable transparency effects" or something imo.) Many of these css features have zero indication of what they do (eg a feature on yt labeled "Misc" with no more info) so it can be a bit annoying to debug issues. Transparency does go brrr tho so that's cool