Comprehensible, flexible, useful, brief but broad

Flexible, quality, brief but comprehensible, many fields covered. Grading should be more difficult for course attenders, in a way of changeable questions during other attempt, compared to first attempt.
In general, I am so satisfied, and I would recommend it. I hope it will be useful in finding a job.
Engage students more during learning process, by putting quizzes after severally proper sections. It's gonna stick better into brains.