I use Dashlane (password manager) which has a similar feature including checks of the dark web.Would highly recommend. Cost is about the price of a coffee a month.
I’ve been using this quite some time. Fairly useful, but fairly depressing to actually get an email from it. The system’s emails usually start with something along the lines of "
You are one of the X million people who have been pwned recently in the Y breach."
I use 1Password and they link to haveibeenpwned to let you know if your email address has ever come up on any leaked lists, and they can auto-update your passwords for you. Super useful, and at £3 a month - a no-brainer.
I recently downloaded the million most commonly used passwords while doing some security stuff at work, scrolling through that list is enough to destroy your faith in human nature…