The only one I didn't like was the Intro to Experimentation one. And the caveat is I loved the ideas they presented, I hated the WAY they presented it, joking off each other, comedy show, circus side show. Not what I expected from a seminar, but apparently it is those two guys personalities.
So Denny commented and now here I am, cause of course I am...
It's a tricky line to walk when you do a presentation between too showy/jokey and too dull/dry. I worked for a big entertainment company for a good long while, so I have an inherent bias towards trying to be more entertaining than dry/straight forward. (I think the information tends to stick better even though you can't get as much across.)
Denny, of course, is an old rock and roll roadie and bassist - I don't think he'd know straight if you gave him a yard stick, compass, plumb bob and a laser gyro.
Naturally, the silliness (even our stilted version of silly) isn't for everyone. But hopefully there was enough useful stuff in the midst of it all that it was still worthwhile.