I liked this class a lot - I thought the professor was a good lecturer, and the lectures themselves are very clear and well-organized (though unfortunately not recorded). The homework is graded on correctness but generally weren't too difficult, aside from a few tricky problems. We had two midterms and a final - in terms of exam format, the questions were all fairly straightforward and similar to those in homework/lecture, with the exception of each exam having a question subpart (usually worth ~5%) that was noticeably harder than the others. I didn't attend many office hours personally, but the professor would almost always be going over homework problems.