So much is special about the EPP! We offer free syllabi, software, a pedagogical community, and certifications.
With regards to software, the academic license professors receive through the EPP is several steps above the free version. It will give the students access to everything that's available in the Marketing Pro feature set (see here), typically valued at $800. This includes things like social media, email marketing, blogging, landing pages, and much more.
If you sign up for the free software (see here), you'll see some of the limitations you'll come up against. One of the only reasons to use the free software over the academic license is if the students need to keep their work (for example, if students decide to monetize their class project).