Significant improvement of the default experience

This new editor is a massive improvement over the old editor, and long overdue.
Many other sites had much nicer editors and WP was languishing with ancient tech. Most sites I’ve worked on had already replaced the default editor with various plugins that introduced significant bloat.
Hopefully Gutenburg reverses the trend of bloated, incompatible editor plugins and instead we get nice reusable blocks that do the same work in a way that plays nicely with WP, other editor plugins, and users on slow connections