Chavira is a very knowledgeable professor who clearly loves this topic. However, her lectures are a bit slow and can be challenging to follow at times. Make sure to listen and take notes on everything she's saying -- don't just read the information on the slides because her exams contain more info than what is on the slides. In general, her exams are very very specific, as they test you on all parts of the class. This was a big challenge for me especially because the class grade is based on solely the 3 exams (treated as a total of 3 midterms). However, if you put in the work and study well in advance you should be able to succeed.