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GitHub User: cascalheira
AngularJS is easier (actually way easier to understand) but Emberjs pays off in the end (in my opinion). Took me two weeks to learn most of what i needed from it and create a web gallery/photo store app front end (to sell files and prints) that runs very smoothly even in most 2-3 year old android and apple devices.
That being said, i can assure you... it was painful and frustrating, ember-data still needs a LOT of work, documentation can be confusing and outdated in some cases... As the framework changed a lot on the last few months a lot of the things you can find on stackoverflow are outdated...
On the other hand, once i started grasping the concepts of it, it just started to make perfect sense and now i love it.
Just my 2 cents!