No longer works. It detects the video, but, once 'completed,' the download button does nothing. A previous time it would record only videos without any audio. Used to be a decent downloader, but with recording time limitations, I think, unless you went Premium.

See reply from the developer on how to record audio without extra downloads (I did not try that out, hence the neutral rating. To be honest, I did not even get to the step of trying to record anything at all).
Last time I tried, I found the audio capture feature confusing, with a screen seemingly requiring to install non-free software to use that feature (which would conflict with the advertised "Key Feature #1, Free Forever"). Perhaps it was just a form of advertisement banner though (that would conflict with the description of key feature #7). Or maybe I misunderstood something. I will just move on with my life, and let the next user find out by themselves.