AVOID!!! Do not waste your time on this add-on.
Downloaded a video, took 9 hours after converting to "aggregate," and after all that - they had the NERVE to add a big ugly QR code on the video, and tell you you need to purchase the premium version.
At least they could have warned you before downloading (or better yet, just disable it altogether so people don't waste their time).
Find an alternative - there are plenty out there that will be more upfront and work better.
Pity I can't give it zero stars, but at least it does work for some videos, so maybe it still earns this one star.