Export RE constituents into Mailchimp
Bring campaign results into RE. Such as unsubscribes, bounces and open/click data
Synchronize your data both ways between RE and Mailchimp
Import new records from Mailchimp to RE
Remove subscribers from an audience
Bring in all subscribe or unsubscribe data as a consent record
Chimpegration settings and configuration
https://youtu.be/V3QUDh_B0xs
Getting started: How to activate the plug-in, link it to your Mailchimp account and get ready to integrate RE with Mailchimp.

More information on Chimpegration and our overview screencasts are available here.