Who here has completed the OSHA 30 hour course?

I've been looking forward to taking the OSHA 30-Hour course.  From my years in construction i understand the importance of workplace safety and OSHA requirements and believe this is an important investment.

For those of you who've completed it, how was your experience? Was there anything that surprised you or that you wish you'd spent more time studying beforehand?

Any advice for a guy taking it for the first time would be appreciated.