Gibson is controversial in security circles due to what some see is a "sky is falling" alertism stance. I believe too many drop all his packets when he goes into this mode. Steve has some good content, tools, and some great podcasts for beginners.
Furthermore, he has the best podcast format and is the most consistent producer among the podcasters, and he doesn't do any of those ridculous "cool hacker" skits, whizbang sound effects, and burping/farting/beer jokes.
However, like most things on the Internet, you have to read and listen with a critical mind and check the facts. But overall, I think he's worth the time.