This addon is working really well so far. I had some initial issues but soon sorted them out.

Escric en català, que és la meva llengua estimada.
Fa temps que conec aquesta eina i la trobo: Excelent!
Fa uns pocs dies que faig anar la nova versió, i va encara millor!

I've been using it for years. So helpful when learning something new. Many thanks for doing the hard work to keep up with all the challenges you have to face!

Been using it for years. Works like a charm.

very nice add on

The creator of this extension is a very hard-working and dedicated person; he's kept it up for a long time despite YouTube constantly seeking ways of disabling it. Easy to use and generally reliable, though sometimes YouTube does catch up--briefly, never for long. I use it in conjunction with a standalone app that does some of what this doesn't, but the reverse is also true. Highly recommended.

Perfetto downloader, veloce e facile con buona scelta in quali formati