Don't go into the course with any pre-conceived or suggested expectations..
Be totally open-minded, and get into "sponge" mode.
Listen and Learn, be pro-active, if there's something you don't understand, or think you disagree with, challenge the tutor to make it clear....
These courses, because of the nature of the subject, are like Gold, are very expensive, and most people consider it a privilege to get on a course sponsored by their employer...
Whatever accreditation you achieve from the course will be a huge future asset, your employer cannot take away the knowledge or certification you gain from it, it's a tool he doesn't own...