One major issue with Electron that I don't see talked about much is backwards compatibility. This release states that because Chrome no longer supports Mac OS 10.9, Electron doesn't either.
Resource usage aside, there's far too much control of a given app being given to the Chrome team.
Ouch. Thanks for mentioning the issue. I'm still happily using 10.9 on my main laptop and in no rush to change, and I was hoping to look into using Electron for a project, so that's going to be awkward.
Having used all of the subsequent iterations of OS X, now I will be reverting to my Time Machine copy of 10.9 because really, the usability of it has gone downhill from that point on. Or even 10.8, I'm not yet sure.
Who cares if it's secure but sucks so much that I'm not using it anymore?
Resource usage aside, there's far too much control of a given app being given to the Chrome team.