First of all installation: It requires a "helper program" to be downloaded and installed to your PC separately.
Then the plugin downloads the video, but spends your CPU cycles to add an annoying QR code for the developer to the downloaded video, adding BOTH delay AND annoyance to the download process.
If I wanted a QR code added to the video that I want to save, then I would ask for it.
Useless and annoying. Don't bother installing this
