Well here we are writing with Gutenberg. It's different from Aztec. How does it compare with the undocumented editor in wordpress.com?

Well here we are writing with Gutenberg. It's different from Aztec. How does it compare with the undocumented editor in wordpress.com?
http://herbmiller.me/2017/03/12/bucket-list-wordcamp-london-17-19-march-2017-wcldn/
Can I create a page using Brix?
Does this work?
It doesn’t seem to do anything in the editor.
Didn’t manage to get it to work at all.
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View me please.