Netlify is a great tool, my biggest issue with it (and why I continue to use GitHub Pages) is that the "Global CDN" is a cluster of DigitalOcean nodes, which I don't trust as much as e.g. Fastly in terms of performance and reliability.
(Note: that info is from anecdotally looking at Netlify site IPs, I could be wrong)
(Note: that info is from anecdotally looking at Netlify site IPs, I could be wrong)