Good - for YouTube I depend on BYTubeD (development stopped) Rated 3 out of 5 stars

Fine tool.
Regretfully however, it is not able to download Youtube videos under user-account-videomanagement (like 'watch later', etc).

For this I use BYTubeD as a workaround.
BYTubed is not being developed anymore but still works nicely.
It generates hyperlinks in a separate browsertab for all or selected videos.
Then I start DTA to download those videos based, based on these hyperlinks.
It would be nice if this was implemented in DTA.

For Youtube videomanagement DTA+BYTubed is a splendid combo.

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This review is for a previous version of the add-on (2.0.17.1-signed).