I have used (and still use) Sublime, yes. I switched over from TextMate as soon as I could.
I'm not suggesting Atom is better than Sublime, and there are definitely many cases where Sublime is better than Atom, particularly in terms of performance. I just think Atom gets more abuse than it should given how useful it is in general. Many of the complaints I see are more rooted in what they feel an app should do in the abstract (e.g. idle at under N megabytes of RAM) rather than actual issues that affect their use of the tool.
I'm not suggesting Atom is better than Sublime, and there are definitely many cases where Sublime is better than Atom, particularly in terms of performance. I just think Atom gets more abuse than it should given how useful it is in general. Many of the complaints I see are more rooted in what they feel an app should do in the abstract (e.g. idle at under N megabytes of RAM) rather than actual issues that affect their use of the tool.