The class was thorough. Lots of great content. They could clean up some of the quiz questions, though. For example, I erred on the side of safety in some cases and was marked wrong. If the questions were something like "at least 3 seconds" or "at least 300 feet" I would have gotten them right and still be safe. Also, the explanations of incorrect answers did not pertain to my mistakes so I never got a good explanation of what was wrong.