Atom Blog:

In our effort to banish reflows, we had two main problems to solve. First, we needed to minimize reads from the DOM as much as possible. Second, we needed to improve the discipline of DOM updates, giving ourselves a better ability to reason about the order of reads and writes. Increasingly dissatisfied with our existing, deliberately simple view framework, we decided to try React.

Right out of the box, React’s virtual DOM got us a long way toward our goal of treating the DOM with kid gloves.

React is awesome.