As a JavaScript developer, I use and don't dislike Electron apps (currently running Atom!) but one thing I do have to say is that they use a lot more battery power and CPU. As much as I like Feross' work, I tried using WebTorrent Desktop[1] but after some hours of running it my Macbook's fans turned on. To me, a torrent client should always sit quietly in the background taking up as little resources as possible.

[1] https://webtorrent.io/desktop

I can imagine it feels worse in older hardware. For an app meant to be used only in one OS, it makes more sense to just go native.