I'm very happy to report I passed my PMP exam this past Monday.
I think PrepCast simulator was well worth the investment as I definitely solidified my knowledge by answering questions and reading ALL answers explanations.
I took 2 full mock exams and scored 75% on the first one and 76.6% on the second one. For my PDU's I bought a UDEMY course and would not pass using just that. PerpCast was my main study material. I only referred to PMBOK but read Agile Guide in full.
I took PMI full mock exam and score 69% there. I only took it to get familiar with the famous PMP vagueness.
The real PMP exam questions were pretty vague and most of my questions were Hybrid / Agile with what the PM should do next. Time flew during the exam and despite having managed well during PrepCast quizzes I had a hard time answering questions quickly enough so watch the clock closely! The clock counts down 230min (the time for breaks is counted separately if you choose to take them, which I recommend). I only had one formula question and 3-4 drag and drop.
I wish everyone who is still studying the best of luck and perseverance. You CAN and WILL do it!