This guy is a major a**hole, he's definitely not concerned with his students. He won't let you re-take the midterm even if you have a valid medical reason. He also refuses to weigh the grading policy fairly. Good professor to take if you know your stuff and do all the homework and go to all the quizzes and have no medical problems. He goes way too fast in class but I've heard he's helpful during office hours. But if you have medical issues, don't expect this jerk to accommodate you in any way shape or form.
Summer 2023 - My experience in Professor Koffi's class has been quite disappointing and frustrating. The topics covered were needlessly complex and convoluted methods/proofs and HW load is ridiculous. The testing format added further stress with the first test being 50 minutes of tough questions, leaving little time to think critically. However, the second midterm was slightly more reasonable in difficulty. The final was completely comprehensive on all of the chapters, with no formula sheet as we received in the 2nd midterm, and the last topic was covered 2 days before the final. I hope that in the future, Professor Koffi will take student feedback seriously instead of writing fake reviews for himself -The quality of the posted notes added to the struggle as they were disorganized, messy, and often illegible. -Although I understand this isn't his fault, Professor Koffi's thick accent proved to be a significant barrier.