This is the first post I am trying to write using the Gutenberg plugin for WordPress. I am going to keep this short and sweet as I am testing it as well. You have to try this plugin demo understand the potential of this plugin. So far the demo is great. For a developer preview, this is mind blowing. These are very early stages of development and this looks very promising for the future of WordPress.
If you are a WordPress developer and you haven't tried to use this plugin to test your plugins/themes, you should start today. It is pretty stable considering it is a developer beta release.