As an addendum, I tried Ember out and found it to be fairly easy. Is it plug and play, so to speak? No. Will it work in about 5 minutes, assuming you're well-versed in client- and server-side Javascript? It should.

"Easy" in this case means for the intended audience. Turning on a computer is "easy," but not if you tasked someone who'd just traveled from 1800 to do it.