CleverTouch workshop

Hi, I'm contemplating signing up for a GDPR campaign planning workshop (opt-in focused) with a company called CleverTouch.  I've signed up to use their best practices for the final opt-in campaign but they are also running a workshop to review best practices in preparing for GDPR and how to optimise opt-ins from assets leading up to the final deadline.  Just wondered if anyone has attended one of these sessions and if they have any feedback.