I had a look and bookmarked it. The course starting on 30 Jan is for very basic writing of grammatical English. While there might be other suitable courses at another time, this one looks far too simplistic for any member of the Authors' Hangout.
Almost all posts on the AH demonstrate levels of competence far above the aim of the course.
But the site looks interesting for other courses. Thank you.
If anyone hears of any free editing courses, please could you let me know? (I'd like to try one to see if I'm capable of studying it before I do a 'pay' course for a qualification.)