The interactive nature of the material is really great. Students can perform the Stroop task themselves and get a summary of their reaction time data, which makes this concept very concrete. The Stroop task reaction times are also compared to the "reverse" Stroop reaction times, demonstrating that the font color of the word interferes much less (if at all) with reading the word.
For the college psychology student, I think it would have been helpful if this example used terminology common in classes and textbooks - describing the stimuli as incongruent and neutral, instead of "interference" and "normal" (congruent stimuli were not described). This could be something an instructor could talk about before students go through the simulation.
Also, while the simulation does a good job of demonstrating the Stroop effect, the wrap up and explanation are a bit lacking for a college level course. After students complete everything, the instructor may want to explain why the reverse Stroop effect is so small (reading is a much more practiced skill than color naming, automatic and hard to inhibit), why the task might be easier when the response buttons are color patches instead of words (visual pattern matching, don't need to represent responses at a deeper, semantic level), or talk about how this task demonstrates selective attention.