I find Atoms memory usage (and leaks) combined with odd periods of strange input latency so aggravating that I end up going back to sublime text 3 every time I try it. It just 'feels' so javascripty - like a web app, not like a snappy desktop app which is the reason I don't use my web browser for development. Coupled with the poor performance handling files over a few MB in size I can't see myself using atom in the foreseeable future unless it became a native / compiled app which isn't going to happen.