This add-on seems to keep up to date on a regular basis even when Youtube seems to change it's mind every week & changes things. Rarely is it inop. The 1 thing that prevents me giving it 5 stars is that at one time the download speeds of the smaller 3gp files use to download As Fast as the regular MP4 downloads. Now they drip through under a 100Kbs but that may have nothing to do with the add-on, I'm not really sure. I just miss the faster downloads we enjoyed before on those smaller files. I would like to see the other 3gp file size [240p] offered as well like some other add-ons offer. All in all, I didn't mind donating money to get the more restrictive downloads of of the MP3 files due to youtoob which changes its mind every week on how it works & what it takes away. Good support - thanks