We&#x27;ve slowly been growing our React presence on the site for almost a year now. At this point, we&#x27;re fairly close to the size of the original Backbone app as far as views are concerned.<p>We&#x27;re still somewhat tangled in with Backbone, but it&#x27;s been a great success internally. Performance-wise, development speed-wise and also developer happiness-wise we haven&#x27;t hit too many snags.