Been using it for a few months now. It really improves the experience of those who use YouTube daily. My favorite feature of this extension is the volume boost, sometimes you find music or videos that are really low on sound so this extension helps a ton there!
Plus, the developer keeps updating regularly, which is awesome

This is a must have add-on for anyone who uses YouTube more than twice a week. It just makes life a lot easier by always applying your preferred settings for volume level, playback speed, resolution, full screen/ theatre mode/ expanded mode, dark/light mode or custom themes, and all sorts of other stuff. I feel like it's pretty much mandatory to have this add-on for anyone who watches videos on YouTube at all. I hope that everyone who reads this has an absolutely wonderful day! :)

Amazing features, highly customizable and has many useful options and themes. With the return of control bar and the placement inside the (...) in video player overlay, it's convenient and aesthetically pleasing again. Thanks very much for this add-on!

Works great with ublock origin ad-blocker. Lots of customization from controls to appearance, and I love the options for dark themes. I have had an issue with the audio boosting function, but there is enough here that I still recommend the add-on

Seamless and works beautifully with ad-blocking extensions. I love the option to control the volume level with my middle mouse button, as well as the Picture-in-Picture when I scroll down the comments section. I have donated cash to support this project.