Imports new users, updates existing ones.
One point of comment:
The text a user receives when a password is updated isn't configurable via the back-end.
It is in the language file, ...
Well done for this component
And actually, it is configurable in the back-end.
The setting can be changed in the last two options: "Subject to existing user" and "Text to send to existing user".
After changing, be sure to manually refresh the page to see the changes in effect.