What might be informative is to hear from anyone who's done and passed the exams - and still thinks the brush-up courses were an unecessary luxury.
I'm 1/4 way though the studying myself and can't wait for some quality classroom time, though I accept we're not all born equal. It all looks straightforward when you read the text, but I've done enough reading here to believe that there must be lots of pitfalls to lookout for.