Prof Paul is just a nice guy who really enjoys stats. I admit, sometimes he chooses not to comment on some questions because he does not know the answer, but really, this is an intro course, and that's exactly what he teaches you. I thought he did an excellent job of explaining why calculations were done and the reasons behind certain processes. I hated stats because all I knew how to do were mechanical calculations the book told me to do, but now I actually understand why they are done. The exams are easy, and I disagree with the other person that said he never taught what he tested on. If you go to lecture, he gives examples and if you bother to write them down, you'll notice that he uses those exact examples with different numbers on the tests. Sure he might not be the smartest guy, but he knows how to teach you what you need to know for stats 10.
Professor Paul is very straightforward, and I thought his tests were very fair. He often used problems from hw and class examples on tests. If you show up to class, pay attention, and do your homework, there is no reason that you should not get an A. He is not there to mess with your head -- he really wants you to learn stats for practical applications. He throws some good one-liners into lectures too, so even if you think stats sucks (as did most of the people in my class, this being stats for social sciences) the lectures are alright.