As a professional React developer, I was worried about the code quality and customizability. After purchasing I was pleasantly surprised how good everything is done. Without any problems, I've connected my Contentful API and pushed Gatsby version to Now.sh. I will be waiting for updates to using those themes for my next projects.
And one thing I would like to add to about CLI tools - I have never seen solution like this but it's awesome. I'm sure thanks to this everyone, even someone which isn't react specialist, will be able to create own website. Good job!