From the smartcat poster:

As many sensible posters on this board have said before, training school are totally superfluous, they have no useful purpose, never did have, never ever will have. The people who own and manage such places are nothing more than criminals, any "teacher" who knowingly works at a crap school is also guilty.

And here is something about a business that people complain about. According to the reports, the course quality they provide for TEFL teacher training is not what it should be. Other reports indicate that they must have falsely claimed accreditation with an accreditation body that had published a disclaimer that this was not true.

Obviously, there are not only dishonest training centres but also some commercial TEFL providers of somewhat doubtful business reputation.

http://www.eslteachersboard.com/cgi-bin/review/index.pl?read=30835