I'm frustrated that they spent very little time investigating the scientific/medical voracity of the claims, and instead focused almost entirely on anecdotes.
Radiolab used to be great in that almost all the content was about uncovering the awesome science behind a topic. But now they just do mostly "story" or "experience" shows. I used to highly recommend it to my non-science friends as a way to learn about the science behind a topic, but haven't in a while.