Would definitely not recommend to a friend. The professor made this class more difficult than it needed to be for a summer class.
10% of the grade is from the homework, which is not bad for a math class, but HW is assigned for each new topic. Since the class is shortened into 6 weeks, HW is assigned EVERY lecture since a new topic is coveredd. With lectures being 3 times a week, this is 3 sets of HW EVERY week. And EVERY HW set contains about 20 problems each. So EVERY week its about 60 homework problems, meaning that you'll do about 360 problems for just 10% of your grade, or 36 problems is equal to just 1% of your grade. And the homework is graded based on completion + randomly selected problems for correctness.
Next, 5% of your grade is quizzes. This is fair as these are meant to be low-stakes and allow students to assess their knowledge in the class. However, there was some skepticism on one of the quizzes, and it was canceled and later rescheduled. It was claimed that higher scores after the quiz's deadline were due to cheating (getting answers from others). I didn't think this was reasonable to cancel the quiz scores based on a claim.
The midterms and finals make up the rest of your grade and are pretty heavy on the grading scale. It's a math class, so it's to be expected. There are two grading schemes in case you did better than the final or midterm. It was asked for each exam that each student have their face, hands, and paper to write their answers on to be viewable on their camera to "prevent cheating". He does give a study guide for the exams, but I didn't find them helpful. The point distribution for the exams was not reasonable, as he believed "partial credit is not deserved," and believed in getting the correct answers only. Oh, and the professor is the only one who grades the exams, not the TAs (who just hold discussions), so best of luck with the grading requests. One student did send a request, and he said something along the lines of "I gave you extra points and it still wasn't enough. Maybe you should grade the exam," mmmm, not very professional.
TLDR, don't take this professor if you have to over the summer. It's doable, but it's not fair. Don't take it from me, he even said, "If you don't like the class, then just drop it," so I would listen to him.

I understand why many others find his lectures and handwriting hard to follow, and I totally agree with that part. However, I believe a relatively high homework workload actually helped me a lot in preparation for exams, since he basically filters problems that he wants you to know with homework. He also offers plenty of office hours and gives the review session which directly relates to exam questions.

Gives an absurd amount amount of required homework (30+ hours per week) on top of lectures and discussions. the class its self isn't that difficult and the only redeeming thing about this professor is he has very organized and easy to follow slide when learning the topic. despite there being no attendance requirement, I found lecture recordings to be pretty useless because his hand writing is fairly illegible and unfortunately I cant really understand anything his saying due to his accent.

This class was dismal. He invoked and revoked a new attendance policy, first making it recorded, then not recorded, then recorded again. He had a bad management system for taking the midterm and the final, and it was really hard to navigate the mistakes he made on the exam, he wasn't very accommodating. Below is the final email he sent to us:

Dear Students,

I wanted to let you know that your final letter grades have been posted and should be available to you this afternoon.

After reviewing some of the comments on Campuswire (which I set up to facilitate questions about homework and course materials), I noticed that several remarks were quite critical. Some even questioned my teaching approach and claimed that the course was disorganized, with announcements about tests being made at the last minute. However, many announcements were shared during live lectures, and if you were not attending them regularly, you may have missed important updates.

As you continue your academic journey, I would like to offer a few pieces of advice:

Choosing Courses: If you found the structure of this class challenging, I recommend avoiding my courses in the future, as I don’t plan to change the number of homework assignments or the overall structure.

Handwriting Style: Regarding the comments on my handwriting, it varies due to the way I was taught from an early age. While some may find it unconventional, others have appreciated its uniqueness. I have a total of 7 handwritings.

Accent and Communication: I am originally from Africa, and while I work diligently to communicate clearly, my accent is part of my identity and is not something I can change. I encourage students to embrace the diversity of their professors, as this is part of the enriching university experience.

Lastly, if you have any concerns regarding your posted grades, I expect all communication to be respectful and polite. At this time, I will not tolerate any form of disrespectful behavior.

Thank you for your understanding.

Best regards,
Koffi Enakoutsa

Assigns unreasonably long problem sets and is not a clear lecturer at all. I ended up more confused from his lectures as opposed to reading the textbook. His tests are fair though as his review sessions prepare you well.

Not really sure what to say other than to avoid. He’s never really clear in his instruction and his lectures are sometime outright incorrect. Everyone will get 1-2 specific things wrong on an exam and Koffi will complain but not clarify what would’ve been correct. His homework starts off fine but as the weeks go on they get progressively longer. The last homework was 43 parts long. He posts practice exams but not solutions. There’s maybe only really 10-15 minutes of actual lecturing (which is wrong) and the rest are rants (including “fake” reviews lol) or “life” advice. Also he “forgot” to let us know that we could use cheat sheets on the first two midterms. At least he remembered for the final. But then he banned calculators because he believes you can put ChatGPT on them (which is only sort of true and more hassle than it’s worth). TLDR is don’t take Koffi if you’re interested in Math and value your time.

Terrible Professor. Avoid him if you actually want to learn, otherwise the tests are easy so it shouldn't be too hard to get a good grade. His homeworks are designed to take you at least 8 hours to complete per week and they don't teach you a single thing. They are completely useless for exam prep, just do the practice exams. All in all, I would avoid this man like the plague if I was actually interested in Numerical Analysis and was looking forward to learning the subject.

Pros:
- Very easy exams (almost the exact same format as previous exams, which makes them easy to study for)
- Funny, no B.S. personality that becomes endearing once you get to know him
- Cares about his students and will only put material he covers in lectures on his exams

Cons:
- Very long, weekly problem sets (time-consuming but they are effective in raising your proficiency)
- Accent takes effort to get used to
- "Flowing script" handwriting makes it difficult to read what he's writing on the chalkboard. If he's writing on his iPad for Zoom, expect to be able to read like 50% of his stuff lmao.
- Frustrating to work with over email; you need to visit him in his office to get stuff done (more in the notes section below)
- His method for teaching can often be unclear or unintuitive (more in the notes section below)

Notes:
- I've taken multivariable calculus before in high school but needed to take it again in college because I took it at high school and didn't get college credit for the course. So, I was okay with Koffi's sometimes-unclear lectures since they were kind of like a puzzle for me to work through his logic/reasoning to re-learn material I had already learned before. However, this could become quite frustrating if it's your first time learning, so keep that in mind.
- I was one of several students who received an incorrect grade as my final grade, and the process to get it fixed was extremely stressful. It ultimately took about a month AFTER winter break (he told us specifically not to contact him over the break), an email chain in which he left me on delivered or replied very passive-agressively half the time, AND an in-person visit before everything got fixed. While I would've considered taking his class again before, that experience has lowered his rating from me by a solid star and I do not want to deal with that again.
- If you read Koffi's Bruinwalk review, you'll notice they are split 50-50 between people who love him and people who hate him. I admit I am among those who like him better. This is highly dependent on how open you are to adjusting to Koffi's accent and personality as well as teaching style. In other words, if you take his class with rigid expectations on what a math lecture should be like, you might be disappointed. But if you are looking to (re)learn multivariable calculus with an open mind, you might enjoy taking Koffi's class. I certainly did (until the incorrect final grade fiasco).
- Also the Bruinwalk reviews that say his final was uncharacteristically difficult compared to his midterms are not true from my experience. Very similar, if not identical format; just longer.

Koffi's an approachable professor who explains most concepts well and always pauses to take questions. The midterms were both fair but the final was quite harder than both of them. The weekly homework is absurd. Sometimes, there can be as many as 40 problems in a weekly HW assignment. Thirteen HW assignments for the whole quarter. Make sure to attend the review sessions and do the practice tests he posts to Canvas prior to each midterm and ESPECIALLY before the final.

If you want a good grade, take him. Both the midterms and final were fairly easy. You would get similar or even the same questions as in previous years, and I recommend watching the review session videos. Quizzes are mostly conceptual, but he lets you keep the highest grade. To be honest, the homework is kind of useless. There are about 20 questions from the textbook each week.

Generally, if you are passionate about math and want to learn something from it, I wouldn’t really recommend him. But if you just need a good grade, then take him. He’s a nice and funny person as well.