This is very timely for me - I was just looking for a new static site generator and so far I've tried out Hugo, Hexo and Jekyll but I didn't like any of them because they're so configuration dependent. I'd rather write my static pages using tools that I already know how to use.

Searching for a static site generator that uses React, I found Phenomic first then Gatsby. I was already leaning towards Gatsby since Phenomic is still in alpha. Now that Facebook is using it, my decision is easy. Phenomic looks like it can do a lot more than Gatsby, so maybe I'll give it a second chance in the future.