Just caught this episode over the weekend (props to Sparky for the download), and it was pretty much a blast IMHO.
Herriman's personality shift from stickler for discipline to carefree hippie was brilliant. Just to hear him speak was funny enough.
And what Bloo had to do to get Herriman to loosen up, lol.
The "Lost" reference was also a hoot. Talk about bad timing. And Coco brandishing a baseball bat.
To cut a long story short, brilliant episode.