It does not work! Whith each runcycle the addon detects new, not working URLs (while some of these work!) and after deleting these new ones occur again.
And it takes ages to scan all links (seems there is no good delay after which not working URLs get aborted)
No control what the addon does. While it works in the background one cannot see if it crashed already.
No chance to interrupt or see intermediate results. No batch processing of links. I would not recommend it.

After having deleted not working URLs and starting the Addon again, the addon detects new entries which it did not durung the first run? So it does not work reliable... be aware.