I had Apostolellis as my teacher and I was not too happy with the productivity in the classroom. It felt like all of the other classes were being much more prepared for the class and a lot of my learning had to take place outside of the classroom. The TA office hours help a lot, but sometimes you leave wondering if they even knew what they were talking about. If you put the time in and are interested in the class, it is manageable towards the end. I was looking at a B in the class because of an 80 and 83 on the first tests, but a 96 on the final actually pushed me to an A. Also, be sure to take the PA homework assignments seriously because they make up 42% of the grade.