His lectures are conceptual and so are most of the homework/test questions. His teaching... is a bit confusing (he switches notations or messes up a bit), but it's a good kind of confusion. It's the kind that makes you want to figure out what the heck is going on, and the kind that allows you see how a physicist SHOULD think. There is no doubt he actually cares about the students learning, but I'd guess that people in our class are a bit intimidated or something (or that he doesn't hear us ask questions sometimes). Also, he (or his graders) grade very leniently.
The bottom line is, this guy is a genius, and his derivations (although many of you might hate those) are quite brilliant once you figure out his line of reasoning at the end. I hope he teaches again next quarter because I feel myself slowly learning to hone my intuition and generate physical interpretations from seemingly random equations.