The platform has a strong tendency to freeze or "lock" in the middle of chapter exams or comp tests, not only does this cause frustration, but it also runs down the timer on said exams, and comps. At least 20% of the information is inaccurate about current policies. I have marked at least 10-15 typos per program (SIE, 6, 63). There are typos in the exams and comps as well, which causes extreme confusion when trying to understand a question. The feedback that you receive after you finish a chapter exam is also inaccurate most times. What I mean by this, is sometimes the feedback will take you back to a random section of the chapter (not the specific part of the chapter that correlates to the question being referenced), which causes confusion and frustration.