I was skeptical at first. However, having actually used it now:
- It's *fast*. I've got my full "stack" of modules for web development pulled down while npm is still choking away. Try it, it's NOTICEABLY faster than stock npm.
- It's compatible with npm and there's little to learn. npm init? yarn init. npm install --save? yarn add. Need something particular from npm? No problem, keep using npm on the side.