I love Guelde, he's funny and really care about his subject even though his tests are hard
I liked Guelde. He has extensive knowledge of the world and current affairs, and it shows in his teachings. He does have a tendency to go off on unseen tangents, such as current toaster production in the U.S. or the amount of grain needed for something or other, but that's Guelde for you! There may be some topics that were not covered that are apparent on tests, but at least he keeps everyone on their toes...it's what you should expect in later years of college.
As said before, his notes are very obscure, unclear, and unhelpful. Some things that aren't mentioned appear on tests, and treats some students much better than others. His class can be difficult.