I took the Food Safe course which was very informative. I got the chance to practice some questions that relates to each unit. It does not allow you to move on to the next unit if you did not answer 80% of the questions correctly, however, you could choose to move on. I enjoyed the program. You can stop, take a break then continue from where you left off. The price is reasonable. My only drawback is, I found it a bit difficult at first to identify the icons and navigate my way through them. I believe a video at the beginning to show how to navigate the different icons would be beneficial and hence prevent the waste of time. Apart from that I would recommend Probe It to all those who need to complete the Food Safe course