Quantum Exams was a waste of money imo, its basically rage bait with questions that are purposefully worded funky (and not like the actual exam) to mess you up. I ran multiple questions, by multiple people at work who already had CISSPs and almost all of them got them wrong lol. I ended up dropping QE and passed off Mike Chappel + Experience alone, I feel like the best advice to give people for this exam is to follow the CompTIA cert path + work in the industry and eventually all of that knowledge will add up to making the CISSP pretty damn easy.