My own website is based on Hugo. While the usage (especially the template syntax) is not exactly a joy to use, it works fine and fast for years now. The only thing I need is some web space to drop static files, so it would be really easy to move to another provider. However I wouldn't recommend Hugo to non-technical writers, since the configuration and template syntax would scare them probably away.
The world needs more "static CMS" software (instead of just "static site generators")!