Every section of every course taught has its own personality created by the unique characters and skill sets of the instructor and students. Waiting until the end of the semester to compile a summative assessment of student success can lead to an instruction to learning gap that could be otherwise avoided.
Turn the assessment cycle on its side by employing formative assessment of you class throughout the semester to see how students view their learning experience. Look at ways to use common survey tools built into your LMS or available on the web to gather valuable information as your course progress.
If we do not continually review, adapt and evolve as instructors surely our students fail to receive the best education we can provide.