Frontend Masters
Intermediate React v6 by Brian Holt — Honest Analysis of 34 Developer Opinions
Brian Holt's Intermediate React v6 is the natural sequel to his Complete Intro to React, and the most current paid treatment of React Server Components we found. Where the intro course is one cohesive project, v6 is deliberately modular — standalone lessons on render modes, RSCs built from scratch and then with Next.js, transitions, and optimistic and deferred values, all on React 19. The standout praise is for the "under the hood" RSC explanation: learners say it finally made clear what Next.js was actually doing. The honest trade-offs are the modular format (no single portfolio app to walk away with), the Frontend Masters subscription model that only pays off if you use the wider catalog, and the narrower scope versus older versions that spent more time on hooks, TypeScript and Redux. If you have already done the intro course or comfortably ship client-side React and want to understand RSCs and performance deeply, this is the strongest current option.
Final score
from 34 analysed opinions
Published AI-researched, editor-audited
Distribution of opinions
Per-criterion scores
v6 is rebuilt around React 19 — render modes, React Server Components both from scratch and inside Next.js, transitions, optimistic and deferred values. Reviewers praise the "under the hood" RSC explanation. The honest caveat is that hooks, TypeScript and Redux content from older versions has been narrowed in favour of the RSC and performance focus.
Brian Holt is the single most consistently praised element across nine years of Hacker News mentions and official testimonials. Learners with one to three years of React experience still call the teaching "fun", "interactive" and clear. Official course rating sits at 4.7 stars.
Requires a Frontend Masters subscription ($39/month or $390/year). At a 6h22m runtime this single course is only worth the price if you pair it with the wider catalog or complete it inside one billing month. Less competitive against the free React docs if you want one course alone.
Unlike the project-based Complete Intro, the Intermediate course is modular — unrelated concepts taught as standalone lessons (RSCs from scratch, RSCs with Next.js, performance demos). Reviewers find the build-from-scratch RSC segment genuinely illuminating, but there is no single cohesive app to carry away as a portfolio artefact.
The RSC and performance material maps directly onto what teams are shipping with Next.js App Router in 2026. Learners specifically credit it with demystifying what Next.js is doing under the hood — transferable knowledge rather than tutorial-only skills.
What learners said
What people loved
6- Brian Holt is consistently described as one of the clearest, most engaging React instructors online×16
- "Under the hood" React Server Components explanation demystifies what Next.js is actually doing×11
- Fully current on React 19 — render modes, RSCs, transitions, optimistic and deferred values×9
- Builds RSCs from scratch before showing them inside Next.js, which deepens the mental model×8
- Strong continuation of the intro course — learners feel "ready to ship" after both×7
- Free companion course notes hosted at intermediate-react-v6.holt.courses under Creative Commons×5
What frustrated learners
5- Modular format means no single cohesive project to keep as a portfolio piece×6
- Requires a Frontend Masters subscription (~$39/month) rather than a one-time purchase×8
- Narrower than older versions — less time on hooks, TypeScript and Redux than v2-v5×5
- Frontend Masters catalog as a whole can drift out of date faster than this course×4
- Assumes solid client-side React already — not a fit for people still learning the basics×4
Real quotes from real users
“I loved the foundation for understanding what is happening under the hood with RSC. Thank you for that detail! It helped understand what Next.js was doing.”
“After the intro and intermediate React courses, I now feel like I have a really strong foundation to ship my next projects. Great teacher!”
“I've been working for 1+ year with React, but I got to know so many interesting things I didn't know before. I really enjoy Brian's teaching style as he teaches in a fun and interactive way.”
“Even having experience with React, working as a Front End Developer for 3 years, and being familiar with the technology, I found it very cool, interesting, and fun.”
“I learned React from Brian's v5 course; this updated one is great. He is a GEM!!”
“I did the Intermediate React by Brian Holt on Frontend Masters. It was very good. The quality of courses offered here is very good.”
“Frontend Masters had superior video courses for React/Typescript and they were super helpful. The best value and flat monthly rate for all the things you want to learn.”
“I think the frontendmasters.com has some brilliant introductions. I specifically enjoyed the React course on it done by Brian Holt. Spends a lot of time on tooling as well which I think is really important long term.”
“Whether you're a beginner looking to learn React from scratch or an experienced developer aiming to level up your skills, this course is definitely worth considering. While they are bit expensive their high-quality courses and expert instructor make up for it.”
“Frontend Masters has suffered from course decay — instructors do not always specify language versions, project files sometimes fail to install, and a large portion of the catalog becomes outdated faster than you would expect.”
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How we evaluated this
This review synthesizes 34 opinions collected across the public web. Final score = Bayesian average penalising small samples, then weighted by the positivity ratio. No paid placements, no hidden agenda.
- 11 from Official course platform
- 16 from Hacker News
- 7 from Blogs