I'd say give it a shot. Vercel has a much more reasonable Free Tier, was insanely easy to use and incredibly fast. I had my changes pushed to prod from github in <10 secs

I haven't built anything big on Vercel, but from my test drive, I'd be happy to use them in the future, and this is coming from someone who works AT the A in AWS. AWS does NOT make the easy things easy; though you are right, it does make the "more" possible, but it all depends on what you're optimizing.