Does not work for an inch, it does not block any of the Youtube comercials even do they are repetitive and long lasting, some are almost 4 minutes and they follow after only 2 to 3 minutes of watching the original content.
its anoying and this Blockler is totally Useless.

it completely BREAKS youtube UI and all the thumbnails of videos that should display they automatically disappear.

Ass.

Makes YouTube almost unusable: adds a considerable delay to every UI interaction. For example pausing or resuming a video takes 5-20 seconds.

I love the extension, it is a must-have to enjoy youtube.
However, it is very broken on mobile right now.
After installing, in fullscreen, the video flips to portrait mode every 20 seconds or so. (Sometimes by itself, sometimes as a reaction to the screen being tapped).
The only way to fix it is to go out of FS or double tap to skip 10 seconds of the video.
It is incredibly annoying and by rating one star my intentions are only for the dev to give the issue the appropriate amount of attention it deserves as I am not the only one who suffers from this problem.
There is an unresolved github thread about it and there are reviews here that mention the same issue.
As soon as it is fixed, I will five it the 5+ starts this amazing extension deserves.

It use to work great but since the last update it no longer auto skips ads. I cant even get it to manually skip segments that it claims are already in the database.

It's not working anymore on youtube.

On Firefox mobile, it breaks youtube player.
Can Skip video but freeze YouTube player.
Like pause button, 10s forward -rewind, seeker ber
Doesn't work

Why does it now announce with a little popup that it skipped a sponsor? Its jarring and obtrusive.

It used to not be intrusive about what its blocking but now it will just pause the video for a second or two and give you this jarring pop-up about how its totally skipping for realsies.

Demands you to tediously preview the sponsored segment with no option to disable this. I use quick hotkeys to quickly submit segments without getting in the way of my viewing experience. Now, I have an annoying popup demanding me to test if I did a good enough job. I use the ", and ." keys to make the segments frame perfect, and now, you want to waste my time even more, with the audacity to not even create a setting for this? I guess my volunteer work is over. Goodbye.

Works well on YouTube, but breaks videos on other sites - in this case specifically Teachable courses. I'm not sure if it is something about the video player used (hotmart), but it blocks the player from loading in properly and returns a "Something went wrong" text in place of the video.
Issue was solved through Refreshing in Troubleshoot mode, as using regular Troubleshoot mode, uninstalling the add-on, and deleting browser preference data didn't work either.

does absolutely nothing for greece