i gave my exam on 29th Jan 2018 and passed on first attempt. above target on 4 knowledge areas and 1 target. I took 5 months for the preparation. I started off with head first and completed the book in a month. Then started listening to the PrepCast video .and read PMBOK side be side. Practiced some online mock exams to get an idea about the questions asked. Remember to take down notes while watching PrepCast and from pMBOK. Then read PMBOK second time and gave mock exams from pmp simulators. Completed all 9 exams and scored above 80% on all of them. Based on the results , I focused on the weak areas and wrote the exam again. 2 weeks before the exam I just my revised my notes and gave the exam. Found PrepCast videos and exam simulators very useful.