I haven't tried yarn but for those who did, what made you make the change?
I've switched from npm to yarn[1] a long time ago. never going back.
twice as fast ... in some benchmarks
twice as fast, if you are on nodejs 8, however on node lts you can't update/install new packages! (so basically it's even faster since no install is ridicoulus fast)
Is there any reason to use Yarn now that NPM has comparable speed and lockfiles?