I wasn't sure about this add-on as it had almost no ratings for several years. However, I was assured it's an excellent mod by various users of it, so I purchased it. Wow, it's awesome! Lots of cool features to fine tune, and it even has a feature to backup its own settings. The only thing I want to say is that it was not indicated to me at time of purchase that I had to pay an extra $3.50 for a third party compromised account integration. But I paid it, and entered the API key, so hopefully it works. Thanks for a great add-on!
Thank you for your review :)
With regards to the 3rd party service, the HaveIBeenPwned feature is not necessary for the operation of the add-on. Furthermore, when the feature was introduced, the HIBP API was entirely free - they only started charging for the service after it became widely popular.
If anyone else is curious about the HaveIBeenPwned API, the author released a blog post discussing why it turned into a paid subscription in this blog post: https://www.troyhunt.com/authentication-and-the-have-i-been-pwned-api