As a professor, those end-of-semester evaluations are the most useful to me when I read the comments section (which is optional but which I strongly encourage my students to complete). Most of the standardized questions that my university uses measure whether or not the student has read the syllabus: “readings were related to course objectives,” “policy for absences was clearly stated” or are arbitrary “most classes started and ended on time,” “professor encourages class participation.”
Personally, I find that transparency with the students tends to boost my ratings: “we’re going to do this irritating writing assignment and you’re probably not going to enjoy it, but the end goal is x” leads to “stradmom really cares about our learning” but if I just hand out the assignment, the eval says something like “uses too many boring assignments.”