Study period: About 2 months
Items used - PMBOK guide, Prepcast Video lessons, Exam simulators
Practice Exam average before taking - 79%
Best advice from Prepcast lessons was to try to understand why specific processes and techniques were used and to read the questions carefully as often multiple answers will appear reasonable. I found success in after practice exams reading the explanations on why the answer I didn't pick was correct and why the answer I picked was not rather than just noting that I got it incorrect. It really helped me understand where I might be analyzing situations wrong.