Have been listening to these guys since I started working on my Private Pilot license/cert. They talk about all the stuff your instructor won't necessarily talk about, and they imply and allude to the stuff pilots shouldn't be doing. Great cultural introduction to aviation, especially general aviation (vs. military and commercial), with enough discussion about both of those that you're aware of them.
Have attended a couple of their parties and panels at Oshkosh, and you couldn't meet three more generous and gracious guys.
They being aviation writers by vocation or avocation, they tend to have strong opinions, and they tend to be a bit quirky. If their podcast isn't quite to your tastes, there are others out there, but few so regular and mostly reliable. It might be an acquired taste, but once you do acquire it, it's tough to shake.
Always the first podcast I add when I rebuild a machine or iTunes.