The UI of graphcms makes it easy to create content, manage tags/categories etc., as well as managing multiple blogs from one dashboard. I like how they have made this very intuitive for new users. They also provide tutorials which are great if you want to learn about their platform. Nothing really! But we've been using them since 2015 so maybe that's just me being picky :) Really nothing but the fact that the price tag might be slightly high - especially compared with other similar products out there in the market. We use graphcms to publish our blog posts and keep track of categories and tags within each post. It has helped us greatly by streamlining our writing process and making things more organized.