The difficulty of the class was largely dictated by how well your TA knew the material, as well as how much help they offered you. Dr. Sagae was very understanding and empathetic, so the pressure was never too steep.

Depends on your commitment. You could scrape by and not learn much and still do well. Or you could commit yourself to learning it.

Kenji Sagae is a kind and brilliant man. Dr. Sagae was very understanding and empathetic, so the pressure was never too steep.

Prolog is not awfully hard, but if you're not much of a programmer, you should definitely get comfortable with your computer for assignments.