CISSP Certification Exam Prep Course vs Magoosh GRE Premium Prep
Same Bayesian formula, same rubric — so the difference in scores reflects the difference in the courses, not the difference in how we evaluated them.
Udemy · Test Prep
CISSP Certification Exam Prep Course
Magoosh · Test Prep
Magoosh GRE Premium Prep
Per-criterion
CISSP Certification Exam Prep Course
The course covers all eight CISSP CBK domains as defined by (ISC)²: Security and Risk Management, Asset Security, Security Architecture and Engineering, Communication and Network Security, Identity and Access Management, Security Assessment and Testing, Security Operations, and Software Development Security. Chapple structures each domain systematically, beginning with foundational concepts and building toward the scenario-based reasoning that the CISSP adaptive exam rewards. Learners consistently report that Chapple's lectures decode the conceptual density of the Official Study Guide and reframe key ideas in ways that make the most challenging domain content — particularly risk quantification, cryptography, and PKI — accessible without oversimplifying. His background as both an active security practitioner and academic means domain coverage contextualises theory within real organisational security decisions rather than presenting isolated facts. The main content gap noted by experienced candidates is the volume of built-in practice questions. The video instruction is comprehensive, but most successful CISSP candidates pair it with a dedicated practice test resource such as the Official (ISC)² CISSP Practice Tests, also co-authored by Chapple, or a third-party platform such as Boson ExSim.
Mike Chapple, Ph.D. holds the CISSP, CISM, CySA+, PenTest+, and Security+ certifications and serves as Teaching Professor of IT, Analytics and Operations at the University of Notre Dame's Mendoza College of Business. He co-authored the Official (ISC)² CISSP Study Guide (now in its tenth edition) and the Official (ISC)² CISSP Practice Tests, and has written more than 50 technology books and produced over 150 Udemy and LinkedIn Learning courses. His teaching style transforms dense regulatory and conceptual material into clear, structured instruction without sacrificing technical accuracy. Students consistently describe him as "calm," "methodical," "patient," and "one of the best technical instructors on any platform." His explanation of the CISSP managerial mindset — thinking as a security manager rather than a hands-on technician when selecting exam answers — is cited by numerous first-time passers as the single most valuable insight they received from any study resource. CertMike community testimonials note that his course is "far more helpful than a $2,000 boot camp."
At Udemy's standard promotional pricing of $15–25 (promotions occur near-weekly), the course represents exceptional value relative to the $749 CISSP exam fee and the $2,000–$3,500 price range of in-person boot camps. Multiple learners in Reddit's r/cissp community explicitly describe abandoning boot camp registrations in favour of Chapple's course after comparing outcomes reported by peers who used each approach. The course pairs naturally with the Official (ISC)² CISSP Study Guide that Chapple co-authored, creating an integrated study ecosystem where book and course reinforce each other at a combined cost still well below most single-day boot camp fees. For a credential with transformative career impact — median salaries for CISSP holders exceed $120,000 in the United States — the cost-to-certification-value ratio is unusually favourable.
Multiple learners report that the CISSP preparation process through Chapple's course produced a materially more comprehensive view of organisational security than their prior professional experience had provided. The eight CBK domains together constitute a breadth-first survey of enterprise security governance, and working through them systematically often surfaces gaps in candidates' understanding that were invisible from within their specialised day-to-day roles. Security professionals in roles such as security architect, CISO, security manager, and senior analyst specifically credit the course with reinforcing enterprise security governance frameworks — NIST CSF, ISO 27001, SOC 2 — in ways that improved their day-to-day security decision-making well beyond the exam context. The risk management and security assessment domains are cited as particularly rich in immediately applicable content.
Mike Chapple maintains a companion platform at certmike.com where he facilitates free 90-day CISSP study groups. These structured group programmes — featuring weekly schedules, live Q&A webinars, and community forums — are cited by multiple graduates as a significant differentiator that addresses the primary failure mode of solo CISSP self-study: losing momentum across the months-long preparation period. Within Udemy, Q&A response times are variable, a structural issue across the platform rather than specific to this course. The CertMike study group fills much of this gap. Learners seeking broader community discussion also gravitate toward r/cissp on Reddit, which frequently recommends Chapple's resources as a primary study tool. The slight fragmentation between Udemy Q&A and CertMike community is the main friction point noted by learners.
Magoosh GRE Premium Prep
Magoosh GRE Premium includes 290+ video lessons spanning Quantitative, Verbal, and Analytical Writing, plus 1,600+ practice questions — 160 of which are licensed directly from ETS, the organization that writes the actual GRE. Test Prep Insight confirms the practice problems are "a close match for the real GRE" and that it would be "hard to decipher real GRE problems from most of Magoosh's mock problems." The primary content criticism, surfaced repeatedly by independent GRE tutor Vince Kotchian and GRE Prep Club forum experts, is that hard-level quant questions sometimes exceed actual GRE difficulty and that the curriculum occasionally presents problems before the relevant video concepts have been taught, creating disorienting gaps for self-directed learners.
The two primary Magoosh GRE instructors — Chris Lele (verbal) and Mike McGarry (quant) — are recognized as experienced educators who break down complex GRE concepts with clarity. Verified student reviews on gre.magoosh.com specifically name both instructors as a reason for the platform's effectiveness. GRE tutor Vince Kotchian, with 15+ years of experience, independently affirms their depth of knowledge and quality of instruction. The consistent criticism across reviewers is delivery format: lessons are PowerPoint-style slides with voiceover rather than an instructor on camera, which multiple reviewers describe as monotonous compared to live-style whiteboard formats used by competitors like Kaplan.
At $149 for one month or $179 for six months, Magoosh GRE Premium is consistently described as "an absolute steal" relative to Kaplan ($599), Princeton Review ($449+), and Manhattan Prep ($599+). Test Prep Insight rates value-for-money among the highest in the GRE prep market and EduReviewer assigns it 4.5/5. The +5 point score improvement guarantee — with a full refund that verified users report actually being honored — adds meaningful risk protection. The 7-day money-back window and 7-day free trial further lower the barrier to entry. For the feature set delivered, the price-to-value ratio is unmatched in the premium self-paced GRE prep category.
Magoosh GRE Premium includes up to 6 full-length adaptive practice tests and a score predictor that estimates performance within a 5-point range after 50+ questions per section (independently measured at 97–99% accuracy for quant and verbal). Verified student data from gre.magoosh.com shows students achieving 322–335 on the actual GRE after Magoosh preparation. The main limitation is volume: 3–6 full-length tests is significantly fewer than Kaplan's 13 or Manhattan Prep's 13. An additional concern raised by Exam Strategist is that some practice test questions are recycled from the main question bank, reducing simulation freshness. One student in the GRE Prep Club forum also noted that the hard Magoosh quant questions can undermine confidence without accurately reflecting real exam difficulty.
Magoosh GRE Premium translates directly to score improvement for its target audience. The platform's own internal data cites an average improvement of 5–6 combined points, and the +5 point guarantee is backed by a full refund. Verified student reviews document score jumps ranging from +6 to +21 points, with one student improving quant from 137 to 158 in a single month of preparation. GRE tutor Vince Kotchian calibrates the realistic ceiling at a combined score of roughly 320: for students targeting that range or below, Magoosh is genuinely effective. For those targeting 165+ per section, the platform's question difficulty and content depth are insufficient without significant supplementation from official ETS PowerPrep materials and higher-rigor resources.
Scoring methodology applies identically to every course on the site — see the formula.