While all this is exciting stuff it's let down by the block editor itself. For example you have to work blind in the responsive setting as the editor area doesn't change width, like it does in the WordPress customiser, to give you an idea of what is happening.

When the like of Toolset has responsive previews built in already for its block solution for Views/Blocks you have to wonder why this isn't already implemented in WordPress Core already. And Toolset has al lot of these features installed already which adds up to a lot of variance between how to do things with different blocks and no uniformity.

There is an awful sense of the Gutenberg team being frequently behind the curve. I can see why a lot of block developers are frustrated by the breaking changes with each update if they go ahead and introduce a feature and then the plugin catches up and causes a conflict.

I also note that if you use the block editor out of the box on a clean install that the default styling overall is not conducive to creating eye pleasing layouts. I know that the idea here is that it is the job of theme creators to do this but can't see why the default shouldn't get off to a good start without depending on a theme.

I really like the block editor but it really needs to mature and get some shape on itself. It will, I suspect, eventually do so.