I hate to say it, but almost all of these sites/systems end up being far more annoying than useful. Why? Almost all the time, their alerts simply are not actionable. At best, they'll tell you that your username/email was included in a breach and often identify the breach itself by some nebulous data cache name that means nothing to you.

They almost never tell you which site was actually breached, nor do they ever give you any hints as to what password was actually compromised.

So really, when I show up in one of these alerts, I'm always asking myself:

- Was this a recent breach, or a redundant alert from something I dealt with months ago?

- What account do I actually need to update, if any, to be safe from this alert?

These questions almost never seem to be answered. As someone who uses a password manager and a different random password for every site, there's no way I'm going to proactively hunt down and change every single entry in its DB when I get the "alert of the week."

(FWIW, I once worked somewhere that somehow had access to a far better version of this data than they'll ever let the public get access to. That system actually did generate alerts that were actionable. I only wish I had a way to get useful alerts like that as a private individual.)