From June 14th, 2019 to December 5th, 2021, 50% user give 5-star rating, 50% user give 1-star rating. for Smart Youtube Playlist (AutoFavorite) chrome extension.
Be warned before downloading... I Tried to sync with my Youtube Likes list but Google blocked it saying "App tried to access sensitive info from your Google Account. To keep you safe, Google blocked this access"
like it.