I have to say, Phoenix Liveview is one of the most exciting things to me, although it's not a match for what I'm working on right now. But my previous job it would have been a perfect fit (a big SPA for monitoring a bunch of IoT devices that had web socket connections to a backend). We were two frontenders and two backenders and we spent so much time implementing and maintaining, not to mention _arguing_ over the API between the SPA and the backend, and that API would've basically gone away if we'd used Phoenix Live. I really hope to get to use it at some point.