Sheehan is hilarious! I had him for PIC 10A and I loved going to lecture because his deadpan humor would crack me up. PIC 10A was a pretty easy class in general, so it's hard for me to say how difficult or effective he was, but his lectures were definitely clear and well organized and he did a great job of engaging the class.

Take his class if you can. I'm going out of my way to take a class this quarter just because he's teaching it.

I had sheehan for Pic 10A.

His class was pretty easy--he covered everything in an extremely efficient way. The midterms were very straightforward and the final was a piece of cake. I'd definitely recommend him for future students.