The Mosaic team has largely fixed the output issues and simplified the class system.

By popular request the Mosaic team has released a 1 hour video showing a complete site build using their Blank theme. This is a nice demo of the theme, style manager, library, and of styling Gutenberg elements. Probably the best videographics team.

Here is a look at the design system aspects of the Mosaic builder.

Paul Charlton takes a look at Mosaic and highlights some of its features.

Mosaic is a new WordPress page builder from the makers of Smart Slider 3 and other plugins. This is the most full featured and polished version 1 that I’ve ever seen.  Mosaic is a good solution for site builders who want a no-code / low-code builder with lots of advanced features, but isn’t a tool just for developers.  I created a video with a full walk-though as well as a review of the pros and cons.