Go listen (and download, should you desire, and you likely will) their first four songs, which I'm going to describe as "Schoolhouse Rock!-meets-The-Shins." Or maybe "Ben-Folds-meets-Dr-Demento."
Or maybe "awesome."
With densely-packed wordplay and pop-cultural allusions, it's probably more for (or most appreciated by) kids ages 6 and older. My favorite track is "The Lonely Tomato," which somehow manages to be highly educational, metaphorical, and catchy all at the same time. All four tracks are worth checking out.
(And then go over to Central Services' myspace page while you're at it.)