Complete Intro to React, v9 vs Vue - The Complete Guide (incl. Router & Composition API)

The course covers React 19 from initial project scaffolding with Vite through hooks (useState, useEffect, useContext, useReducer), component composition, routing with TanStack Router, and performance patterns — all organized around building a production- style e-commerce application rather than isolated toy examples. Reviewers consistently praise the modern toolchain (no Create React App), the focus on current patterns that actually work in production codebases, and the absence of outdated class-component material. The v9 designation signals genuine curriculum updates rather than cosmetic refreshes, which is rare among multi-version React courses.

Brian Holt is described across all reviewed sources as an exceptional teacher — specifically praised for making complex concepts feel obvious through clear analogies, methodical build-up, and a conversational delivery that stays engaging across eight hours of video. Multiple reviewers note that experienced React developers still learn meaningful things from Holt's explanations, suggesting depth beyond what the beginner framing implies. He is repeatedly described as a GEM among Frontend Masters instructors.

The course requires a Frontend Masters subscription ($39/month or $390/year), which gives access to the full course catalogue of 200+ expert-level courses — not a single-course purchase. For developers who intend to use more than a few courses, the subscription offers strong value. For learners who only want this one course, the subscription model is a higher upfront cost than a typical Udemy purchase. Frontend Masters does not offer a permanent free tier, though the course notes and exercises are publicly accessible at react-v9.holt.courses.

The e-commerce project format means learners build a real application rather than disconnected code snippets, and the toolchain — Vite, ESLint, Prettier, TanStack — mirrors what professional React teams actually use. Reviewers who moved directly from the course to their first React role or freelance project report that the patterns transferred immediately. The course avoids outdated approaches that would confuse learners encountering a modern codebase, which sets it apart from older React curricula still teaching class components as the primary pattern.

Building a complete e-commerce application — covering product listings, a shopping cart, routing, and state management — gives learners a deployable project and a portfolio piece, not just completed exercises. Reviewers highlight that the project scope is substantial enough to demonstrate real React understanding without being overwhelming. The course's companion notes at react-v9.holt.courses also let learners self-pace the text-based curriculum independently of the video playback speed.

At 32 hours across 402 lectures and 26 sections, this is one of the most comprehensive Vue courses available anywhere. Reviewers consistently note it covers everything from core directives and component communication through Vue Router, Vuex, Composition API, and three full-scale project builds. The course teaches both the Options API and the Composition API introduced with Vue 3 and has been updated to reflect Vue 3. The minor criticism from a small number of reviewers is that some earlier sections carry Vue 2 heritage and that Pinia — now the official state management recommendation — is not the focus, with Vuex still prominent in the core state management chapters.

Maximilian Schwarzmüller is the single most recommended Vue instructor on Reddit and Udemy alike. Reviewers praise his ability to dig into the underlying concepts behind Vue rather than just demonstrating surface syntax, describing the teaching style as "one of those courses that teaches you how to fish." His lectures are short (typically 2–3 minutes each), well-organised by chapter, and paced to avoid boredom. With 3.5 million+ students across his Udemy catalogue and over 244,000 enrolled in this course alone, his track record as an educator is unmatched in the Vue space on the platform.

The course lists at $189.99 but Udemy's frequent sales bring it to approximately $10–$15, making it arguably the best-value comprehensive Vue course available. Multiple Reddit reviewers specifically call out the Udemy sale price as a reason they chose it over Vue Mastery or Vue School subscriptions. Lifetime access means the investment compounds over time as the instructor pushes updates. The 30-day money-back guarantee removes purchase risk entirely.

Udemy's Q&A section for Maximilian's courses is active and well-maintained, with the instructor and teaching assistants responding to questions. Reviewers note the lectures themselves are organised well enough that revisiting specific chapters for refreshers works effectively. No significant complaints about support were found in the reviewed sources, though Udemy's community model is inherently less interactive than a cohort-based program.

The course builds three substantial projects — a "Monster Slayer" game, a "Learning Resource Manager" web app, and a "Find a Coach" full-featured app with authentication and data persistence — giving learners genuine hands-on exposure. One reviewer refactored a production project immediately after completing the course over a weekend. Reviewers who became front-end developers credit the course directly. The modest gap is that Pinia (Vue's current recommended state management) is not the course's primary focus — Vuex is — which means learners working on new Vue 3 projects need to supplement with Pinia documentation or a short add-on course.