Although I have not used this, I plan to add it to my classroom activities related to the Origin of Life. The content is accurate and presented in a clear way that my students could follow. It will be very helpful for visual learners - being able to see the step by step process of the Miller-Urey Experiment and explanations. The site is well organized and easy to follow. It could be used in class or as a supplemental study aid, or a combination of both.
Because this is a self contained activity, students in my online class could easily access it. It might be valuable to add a worksheet or study guide to draw attention to the important concepts.
I did not encounter any technical problems or difficulties.