Reviews of ESLinsider's courses can be seen below. There are currently two courses: a basic course and the main one TEKA. This online TEFL course was formerly called the Advanced and before that 120 hour course, but it has undergone several iterations and improvements since then. Formerly there was also a 20 and 60 hour course.
Please read these 2 points before leaving a review.
- Use your email and name (or last name abbreviated such as "Ian L.") that you used in the course. Constructive criticism is o.k, but if you do not use your name and/or email used in the course then your review and comment may be deleted. The reason why is that it will be safe to assume that you did not take the course and that you may be a troll out to damage the reputation of ESLinsider like this guy is doing.
- Mention the course that you took.
On the bottom of the page there's a video where I selected some of what I consider to be some of the best reviews on ESLinsider here.