That said, I don't use it much anymore - I rolled (and continue to use) my own SSR, adding features as I needed them: taking care of async server-side actions like fetching data; rendering the app; passing initial state to client; dynamic chunk-splitting of routes; a way to export all app routes to static files..

There are many moving parts and "tricks" I had to discover - like, how to bundle client/server bundles with webpack (chunk-split on client, all bundled together on server), creating script tags on server to fetch route-specific chunks faster on initial page load..

So, unless you're into understanding and building/customizing every feature, your time might be better spent letting Next.js provide all that as a foundation. It's well-organized and documented, so I think it would be valuable for teams working together also.

Now I roll my own. I pre-render with react-snap, use react-imported-component for code-splitting and hydration. The pre-rendered static HTML pages are everybit as good as SSR. It adds an extra few seconds to the build process, but with Netlify's CI, I push to Github and its live once I'm back from the kitchen.