A buddy of mine had a copy and I took the class for an easy A. The only gotcha is that you had to be physically present and give him advance notice of you were to be out.
My EM theory second year was quite tricky
It was 60 questions in 180 seconds. No hard calculations, just stuff you were an embarrassment to the prof if you passed EM and didn’t know.
He gave it right before break (3 hour class). I got a 96 first attempt. Next highest grade was a 30. He said I could leave as the remainder of class was to go over the test. I literally strutted out and said I was going to have a cold beer. Good times.