I’m no stranger to WordPress, got several plugins published in the repository, several more on GitHub, and many more unpublished, (plus several themes none of which I’ve published.)
After a month or two of life with Gutenberg I have to say I find it to be… unusable.
Gutenberg’s installed my plugin dev WP instance, and as part of code testing/writing I needed to embed a quick snip of raw HTML into the page.
Couldn’t do it with Gutenberg. Either the blocks are too buggy to run right (Chrome 68, Arch Linux), or the interface is so unintuitive that I couldn’t find the option. There is no doubt that the blocks are buggy, and not only that but on a limited system (say Core 2) the lag from all the JS in the browser makes just using them exremely difficult. And before you blame Arch or Core 2 I find Gutenberg just as difficult when I test on a Win7 i5 machine, about as baseline as a person could ask for.
Had to turn off Gutenberg to get the page set up right.
If I, as a developer, can’t get it to work, then how is the the average person?
I’m not opposed to Gutenberg as a plugin, who knows maybe someday it will evolve into something good, but I fear that if it’s rolled into Core anytime soon it will ruin WordPress.