The show has some definite merit as an introduction via experience to the humanist community. I direct people here that are skeptical of atheists' ability to organize, (if I hear a "herding cats" joke one more time...). The downside, for me, is that the show relies on short, Sesame Street-style construction to keep interest and doesn't necessarily dig very deep into the issues of humanism/atheism. If you want something with more rigor, you'll have to look elsewhere.
Overall, not a bad listen and certainly worth listening to if you're interested in getting started with or learning more about the humanist community.