Professor Roth is over all really good! His class is fairly easy if you go to lectures, and his mid term and finals are basiclly given since he not only gives you the questions in advance but he also reviews them in class. His lecture are not that great but he is not as boaring as most proffesors are, and he is really friendly and helpful in Office hours. I definitly recomend him to everyone, he makes all this new and odd material very easy to understand!!!