It's pretty tightly coupled to webpack and has a reputation for being extremely slow to rebuild a site. Fine for small sites but I've heard of painful multiple minute long rebuild cycles for large sites with a lot of content.
They give you really nice incremental builds out of the box, which are particularly easy to set up with gatsby cloud (the actual purchase here). Their abstractions are more opinionated, but a lot more "just works" off the shelf with configuration instead of coding.
This - what I wanted was the incremental builds. Also lots of nice starter templates. I have a custom framework I created for incrementally built docs sites for FastComments - but in the future I was looking into Gatsby for marketing/doc sites.
I am not really a NextJS fan. WordPress is an option but I like having the docs in version control.
