The course is relatively simple, and the only complex parts are the lessons where you submit to a tutor, then they provide feedback. As far as the computer marked tests go, if you get a question wrong, it tells you what you got wrong, so it's a matter of trial and error to work it out. The video lessons are helpful, and the course is well put together. I would have liked to pick the relevant modules rather than being forced to do the ones chosen. For instance, tutoring over the telephone has been superseded by Zoom or Skype. Still to receive my certificate, but I'm putting that down to the pandemic. I'd guess it's as good as any other TEFL course out there, but nothing outstanding. I'd be happy if they tighten up their marketing - I'm getting emails to sign up for the course, even after doing so.