I have went to his course paid by my primary school many years
ago.
From what i recall, he is a really good speaker, he can be a
very good salesman.
I didn't really learn anything from his course(maybe i wasn't
paying attention, still young), all i remembered was him teaching
us mindmaps and other memory techniques which can be found in many
other self help books.
He seems to have taken all these techniques, incorporated with his
very good ability to talk and convince everybody, and give you a
very very good motivational boost.
If he can be by my side every single day motivating me, then i
will find the course useful. Im very sure everyone was very
motivated by him to study hard, but the motivation only last for
1-2 days after the course.
Maybe it's just because we're just pri school kids at that
time.
But i believe he can sell his stuff well, i would gladly employ
him to sell my business idea to potential investors, he can make
one single product(eg keychain) sound so useful and at the same
time makes you think u need to buy this keychain, and motivate you
to do something with this keychain, and you can be successful with
this keychain