I like that it is easy to use without having much technical knowledge which makes integration easier than other solutions for GDPR compliance, also works great in combination with others such as MailChimp or Mandrill.
There were some issues when we migrated our old email services from Azure/Hotmail but those are resolved now so there shouldn't be any problems going forward. The support team at BEARER has been very helpful since Day 1 once they realized what was causing us trouble during migration. We have solved most issues before release date (we missed one deadline) but still managed to meet all deadlines set up front including EU Cookie Law Consent Banner Date!