I had attended the PMP Exam Prep Course from Project Victor on Jan 2016. I was initially struggling to understand some of the concepts of the PMBOK, but after joining this class those concepts became quite easy to understand. Dr. Petros Rigas made the class highly interactive which resulted in the participation and sharing of knowledge from people for various backgrounds. The course was highly organized and comprehensive leading me to understand the concepts rather than memorizing it. I would highly recommend this course to anyone preparing to take their PMP Exams.