This is the first time I've opened a discussion about Atom where all the top posts weren't about how horrible and slow it is. Has it gotten better, or have people who know better just given up on this editor?
I bet the core Atom team would agree with you. :) You should join the Slack channel and dive in. Pretty smart+driven group of people working on it. http://atom-slack.herokuapp.com/
It's a pretty nice editor, actually. I like the tabs approach; I like the restore at startup. Colorized text works well and detects file types correctly even without filename extension.
I notice there's an atom-macros module. Nice. For me, nothing replaces Emacs... yet... but one of these new kids might sooner or later fit the bill.
But that's OK. There's room in the universe for more than one editor. I use vi all the time from the command line for quick edits, and Atom is earning a place in my toolbox as well.
As Walt Whitman said: I am large, I contain multitudes.