Henri's is a Sass toolbelt as we call it. That means, that Henri's is a framework, which is implementable but doesn't do your work for you, it helps you do your work.
Like many other Sass frameworks, they give you a certain style, useable components and in the end your project looks like another project made with that framework. Henri's doesn't do that, it doesn't give you that style. No website or project should look the same, especially not like a project for a company, because it should look like a project or website of that company. In that companies style.
Ofcourse you can overrule everything,