I attended Mitch Lacey's Scrum Master Course in Paço de Arcos (Portugal) in October 2009, mostly for the certification. Having been managing/coaching agile development teams for over two years and being a better reader than listener, I didn't expect to learn much from such an introductory course.
I was utterly wrong. Not only did I gain a better understanding of many of the concepts underlying Scrum: I also received practical advice which I could put to work as soon as I got back home -- with results so outstanding that I thought they were worth presenting at a conference in Barcelona a few months later.
In summary, Mitch's lessons were enlightening as well as entertaining. His deep knowledge of the matter showed up at every question. I absolutely recommend this course.
Jordi Salvat i Alabart, AVP of Product Development, Salir.com, December 2009