I successfully completed my PMP certification on the first try yesterday. For me the key to this success was practicing by completing as many simulated exams and quizzes as possible. I did 5 exams. The money towards the simulated exams was a great investment that paid off.
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®