Strapi Headless Case Study
A development shop in Switzerland just completed an implementation with Strapi CMS, a pure headless vendor. They wrote a detailed blog post about it.
Our Journey with Headless CMS
It’s worth reading. The intro stuff is obvious, but as the article goes on, it details some of the more advanced engineering they had to do. I don’t know if this makes pure headless look good or bad – they seem happy, but it also seems like a lot of development and architecture work.