At WES I took Administering and Supporting BES 4.1 sp5 part 1.
As a previous poster said, it gives you a good understanding of the
message flow and it was worth taking.
Others I spoke to that took part 2 of the course said that it
expanded on what was covered in part 1, but they didn't find it too helpful.
However, having said that I plan to take part 2 because my company
will pay for it and it doesn't hurt to have it on the resume.
The course material you recieve IMO is worth the price of admission and
the certificates they send you are impressive on the wall at work