I've just finished Module 5 of a course comprised of ten modules. So far so good. I feel like the course is relevant and informative. I'm currently working as an English language tutor, and I see numerous opportunities to apply what I'm learning. However, the course suffers from two weaknesses. First, there are copious errors and typos in the textual content. Just about every screen is riddled with them. Second, the course platform lacks basic study tools like flashcards and practice quizzes, which would improve information retention. I'm withholding one star for each of these shortcomings.