Thought this feedback might be helpful to know. Direct quote to my colleagues:
I tried Atom for the last few weeks. Can’t say it has stuck. Removing leading/trailing whitespace was nice over Textmate. That was about it. Textmate’s find/replace is still better because I can get back to the results w/a keystroke. Atom eating battery is a too.
And Textmate’s cmd-T menu is way better. Atom’s is dumb. Textmate must do some smart stuff like “most recently touched or opened” or something.
Atom’s search results are also randomly sorted. It’s nice in Textmate to, when glancing through results, know when I’m through looking at all the model results. Specs are always at the bottom.
Basically, navigating code spread across many files is still way easier in Textmate.
Another thing I didn’t mention is that having to close Atom’s search pane with “escape” is annoying, compared to Textmate’s search window which goes to the background at the right times and can be re-summoned with a keystroke.