This was a tough class that ultimately is probably not useful for most people.

This was very difficult computer-science related math that realistically is probably useless.

Professor is kind of odd. You should email your homework on time to make sure it's not counted late in person. If you are 1 minute late in submitting homework, you are screwed - so don't do that. It's 50% of your grade.

Prepare for this to be a time-consuming, difficult class. I would recommend trying to avoid too many other difficult classes during the same semester.