I’ve been using Astro as a static website framework for over a year now. It’s what powers this site. I feel confident at this point saying it’s the best framework I’ve used for building content driven websites. It’s performant, stable, and generally unsurprising in how its functionality works. It does make some demands on how you structure your project, but is also extremely flexible in how you’d like to build and render your site. It also helps that most major hosting services support it out of the box. (I use Cloudflare Pages.)
As the discontent with Next.js increases, I hope people will give Astro a whirl. It’s certainly a more pleasant experience if you enjoy using Typescript and node.js as technologies to build with.