Two month before PMP exam, i bought Prepcast, listen to all episodes only once, bought Formula Guide one month before PMP, read & Practiced questions twice. As a result, on 11th Oct passed PMP on my first attempt.
I am thankful to you, prepcast episodes & formula guide helped me.
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®