My real gripe with using web rendering isn't that it doesn't look native (the "native look" changes every year, so who cares if we deviate)... no, it's that it's slow and sluggish and resource-hungry. I honestly don't feel comfortable running Atom on my laptop.
I've not dealt with sluggish performance, while it may be resource hungry (I haven't looked at the resources it consumes, I have 16GB of ram in my laptop so what do I care) I appreciate the performance.
Vim with syntax highlighting and a bunch of plugins has been getting painfully slow for me these days, I've been tempted to play around with the threaded branches. Atom seems quite speedy in comparison.
Agreed. Even with small tasks, I've found Atom to be noticeably slower. Just as an anecdotal data point, it takes roughly a second to open a file or folder in Atom (i.e., after opening the app, the time b/w dragging any file or folder onto the icon and seeing it appear in the editor is about a second), while the same interval in Sublime is imperceptible.
I did try it on my laptop, but not for long enough to hear the fan running. However the CPU does go pretty crazy just using Chrome on my laptop, so I fear it'll do the same with Atom.