Contentrain is a definitely a great new entry in the git based CMS scene and the team behind the product is brilliant. It's easy too see that the product was built with great passion and care. Good luck!
As a software developer, I really liked it. It is fully developer-friendly with its Git-based and flexible structure. I'm more excited for new upcoming features, especially Template Market and Form Integrations.
I already work with Contentrain team on other projects. While building the project, for every modification I needed to implement in the custom made website, I had to pass through them, as I'm not used to the language they are using. Thanks to Contentrain, it is way easier to modify my website's content, without having to wait, or putting extra work on them. Thank you for this app :)