Diploma TESOL

Hi there!
I´ve just signed here and I´m enjoying it a lot...I ´d like to know if any of you has taken the Diploma TESOL course.I´ll take this full time course next year in a language school in England. As far as I know, it´s a very comprehensive and challenging course...the bibliography seems to be endless...lol...anyway, I´m very interested in taking it and I would like to know what it is like from other teachers.
Cheers! ***