The CQF is a well-designed course: topics are carefully chosen for their practical relevance, and then explained fully and rigorously. Paul Wilmott is a talented and enthusiastic teacher, exactly what you need to motivate you for an evening's work after a long day in the office. The other faculty are equally knowledgeable and passionate about their subjects. My primary motivation for taking the course was what I would learn rather than 'collecting the piece of paper', but the CQF's industry recognition has since been of great professional benefit.
I've had no hesitation in recommending the CQF, and several people I know have taken up that recommendation.