I don't know anyone who has taken the class, and have no idea of how well anyone has after taking it so I can't give any input on that class.

The only successful school I have ever heard of is www.hoodcleaningschool.com I know several of the guys that have taken that course, and every single one of them is very successful, and a few have become industry leaders( one is the past VP of PWNA and current VP of the Grease Police, and one is the Current President of the Grease Police)

I would talk to the guys that he has listed, and more importantly try to find guys that arent listed, I am not sure how you would do that, but usually the guys in the testimonials page of any business, are obviously satisfied.

If you want to talk to any of the CHDCA guys (hood cleaning school) let me know and I can hook you up.