I have used a notary public a number of times in my life. You can almost always find one at any bank. It's a good thing there are so many licensed notary publics in so many different places. Some documents require that a notary public witness signatures - there's no choice.
There's one thing I'm a little confused about. I don't understand why there is such a difference in courses offered. But I guess if you think you are prepared for the test and pass it, you are ready for the certification. On the other hand, I wonder if you don't pass the first or second time, when can you take the test again? Are the questions different?
I just think that the preparation courses should be certified and students should show they passed the courses before they take the certification test.