How difficult is it to learn EGC compared to PageUp's other modules?

Personally, I would say the EGC platform sits somewhere in between Onboarding & Recruitment Marketing in terms of configuration. Once you can answer all the questions in the accreditation workbook and understand how the platform works & fits into rec marketing - you're good to go!
The EGC platform has a lot of fixed elements, so once the platform is up and running (ie you've completed the EGC instance set up checklist) there isn't much else to do.
Regarding consulting, EGC is similar (and fits in well) with Recruitment Marketing as we need to be providing clients with advice on how to ensure their platform is a success. Promotion (via social media etc) plays a big part in this, as well as insiders providing timely, insightful and authentic responses to candidate questions.

Georgia has answered this brilliantly. From a configuration perspective, I would say it's our lightest touch module. Once the set up checklist is done, insiders/admins are created there isn't a lot to do or maintain. It syncs so nicely with Recruitment Marketing and the content blocks and code blocks display so nicely in RM.