I had Kozhan for 32A last year, he's alright. He packed our first midterm with content and went easier on the second midterm. The final felt more difficult than the midterms so I would say review EVERYTHING for the final. His lectures follow the book and he does a good job at it, so you either need to read or go to lecture, I found both weren't necessary (I chose lecture). He doesn't come across as the most enthusiastic teacher but he does a well enough job of teaching the material, take him if the others aren't all that great.