We were over the moon about Angular in 2014, but it quickly showed its failings as we got a bit deeper in. 2 way data binding is just precarious. But the thing that really killed me on the whole idea is how TERRIBLE it is as a user of Doubleclick Bid Manager. It is SO impossibly slow that it is practically unusable on a laptop with 4GB Ram and an i5. For a few months we could only actually upload ads to the system if we used OPERA!! If their shining star UI that gives Google about a billion dollars in revenue a month is this bad, we asked ourselves "why we should try to emulate it?"