My go-to YT downloader service. Among other things, I use this to convert lectures and speeches to an mp3 format so they can be sent to my smartwatch for listening without my phone since YouTube doesn't offer a WatchOS app even if you have YT Premium. An overall reliable and extremely helpful add-on that is actively updated to keep up with YouTube's layout changes and whose developer really deserves your donation. The two major drawbacks that come to mind are the cases where content can't be downloaded because it's unavailable in the add-on's server country forcing you to use another third party downloader service and the fact that there are no options to set shortcuts for specific types of downloads. For example, since I mostly download audio, I'd like a button or a shortcut which would let me convert a video into 256 kbs mp3 more swiftly instead of having to open the drop-down menu and manually select the conversion type every time.