Reviewers mostly praise Sanity.io for strong developer experience, fast setup, and deep flexibility when building structured, omnichannel content. Several say schema customization is easy, and specific features like portable text, image hotspots, and Studio v3 customization stand out. A founder of
Sheet Ninja says it was much easier to customize than other CMS tools. Still, criticism centers on uneven plugin support, weak internationalization and TypeScript tooling, outdated docs, missing official examples, and some frustrating editor and data-sync problems.
