Why I moved to Yarn for dependency management as soon as it was released

This article is spot on in terms of the reasons why I moved all our dependencies at Sparta to Yarn as soon as it was released:

Yarn addresses issues such as indeterminate dependencies, network issues/npmjs being down, and parallel downloads in order to provide more value over npm.

Source: https://circleci.com/blog/why-are-developers-moving-to-yarn