I would like to say great work in developing the interactive lessons. I really enjoyed that style of learning. It is actually the first time a software helped me understand clearly the concepts in a timely manager and it wasn't confusing in what the step are. As well as their purpose and different outcomes. The problem I am having is that sometimes the audio does not match the video like it's lagging to load. Other times it completely goes away and still runs till the next video section. Would that be my wifi being slow or a somewhat random problem throughout the videos at times?