Rogawski is a great professor! Unlike a lot of other math professors, he cares about the class and wants everyone to understand the theory, rather than just writing equations on the board and expecting people to memorize them. His tests really test your understanding of the material, which in some ways made them harder, but if you listen to what he talks about in lecture and think about it a bit, the theory isn't that hard. He's also really friendly and approachable and is very willing to help.

If you're taking Math 32A or B, you should take it with him.