Very very good!

I found the TEFL course I did to be very well-structured and all of the concepts were explained clearly. The two classroom days were very helpful, especially as the teacher had completed the course and used the qualification to get work abroad. The slides on the website are easy to navigate, and the tests at the end of each module were properly designed to recall everything we had learned. It was funny to see the developers of this course using the teaching methodologies they were telling us about on us, but they proved their effectiveness!
The feedback on the long assignments is exhaustive in detail, and helps you improve each time.
I would recommend anyone to do a TEFL course, not only can you teach English, you are given an insight into how teaching any group any subject works best, which is useful for anyone who wants to tutor people professionally or work somewhere where they will be doing a lot of mentoring or briefings. We didn't just learn grammar, but how the psychology of the class can work, and how ideas about language teaching have evolved over recent decades.
Sometimes discounts are available on the price of the course just before their closing.