Jon was a really great professor. He is very well spoken, easy to understand, the only down side is that if you miss one lecture you will be lost. It's clear that he's passionate about philosophy and wants all of his students to succeed. Phil 3 can be pretty tough, but if you are going to take it, I would highly recommend his class.

Great class but can be difficult. Go to his office hours because he is very helpful. Attendance is mandatory and he doesn't post the slides so pay attention.