Agree with CD. I help out at a homeless shelter, and I would never have thought of doing it, if it wasn't for something I'd seen on an episode of this show.
I do kind of agree with the patronising comment, made by NOX, as it can be a bit embarrassing for the "less fortunate" people, when they get the "I'm actually a very successful businessman and a millionaire". That part does make me cringe a bit.
However, I do still love it and think it's a really good way of raising awareness, and much needed funds, for these charities.