I love seeing the evolution of Gutenberg! It has experienced hiccups and has felt like progress was moving slow, but feels like the page builder is moving in the right direction. I’ve been a fan from its inception and looked forward to every upgrade. I think starting out with a base theme such as this will make it easier to build upon, especially for non-designers who want a quick way of setting up layouts. This plus the block directory make great enhancements to the page builder.