When comparing Substance vs Hugo, the Slant community recommends Hugo for most people. In the question“What are the best solutions for a personal blog?” Hugo is ranked 9th while Substance is ranked 23rd. The most important reason people chose Hugo is:
Code can be viewed [on GitHub](http://github.com/spf13/hugo).
Specs
Question Ranking
Pros
Pro Free for one site
One site is free, for other option see pricing.
Pro Easy importing of Jekyll posts
An easy to use interface for migrating from Jekyll is available.
Pro Clean and simple layouts
Substance doesn't clutter your blog, it gets out of the way so people can focus on reading.
Pro Open-source and free
Code can be viewed on GitHub.
Pro Single Binary - Cross Platform
Pro No dependencies
All other SSGs expect you to have a full toolchain setup for their language. Hugo is written in Go and distributed as an executable for unix, linux, windows and mac. Just download and run.
Pro Clean workflow
Create your new site, run the Hugo server, edit. Lather, rinse, repeat. Hugo stays out of the way.
Pro Fast
Pro Flexible
Pro Good documentation
Pro Very active community
Pro Many themes available
Pro Draft mode
Allows you to see changes in real time.