[eropple]

Similar datapoint here. I was never a Rails guy, my server-side comfort zone was always on the JVM, but React makes me so much more productive than I ever was before. I'm definitely not a frontend developer; I keep up with it because as a devops consultant I sometimes have to care, but my primary interests are server-side. When I have to slam out a web frontend to something, nothing I've ever used is faster than React, and nothing I've ever used feels as good when I'm actually using the application.

SEO? Sure, that's a problem...for web sites. I mostly make applications, though, and people who want it are the people who are looking for it.