One Netlify feature I like is that if you host a domain with them, you can deploy branches to subdomains via git naming. This is good way to set up dev/test/prod environments with very little hassle.

Something I see in a lot of threads like this is "What's so special about that? I can do all that stuff myself while self-hosting!" Yeah, but should you? Setting all this stuff up is a bunch of schlep that has no productive value, and I'm quite happy to outsource it to someone who makes it easy and obvious.

There’s no such limitation with Netlify.