No, it is a terror. Applications produced with it are bloated monstrosities, gobbling up hundreds of megabytes in both storage and RAM before getting round to as much as putting a checkbox on screen. Bundling an entire web browser inside your program in order to provide portable GUI functionality like what Tk managed more than twenty years ago without breaking a sweat, and at roughly 1/100 the size, yeah, sure, it flies. So did the Spruce Goose, sort of.
But then, I never took to js, I never took to Chrome, I never took to bloat as a way of life.
[edit: typo]