Passed on first attempt after ~ 200 hours of study over 6 months.
My advice: First, stick to reading the PMBOK and using one other reference source, such as Rita's book or the PM Prepcast. Understand the ITTO process charts in the PMBOK. Ask questions such as, how do you "perform integrated change control", and exactly how do you "determine budget". Focus your efforts (and save your money) on enhancing your understanding from the PMBOK and 1 other reference instead of spreading your energy on using various reference sources.
Secondly, practice answering questions using exam simulations from more than one source so that you get used to answering different styles of questions.
I hope this perspective helps, and good luck.