Having just built a hobby Angular.js app, it's cool to see that it fits large aims. For personal use, I found it incredibly refreshing to use, even as bizarrely different as it was to anything else I've tried. Not in a bad way, but in the sense that it was more convention than I was used to (outside of Rails)

I would add that the Yeoman build manager is an absolute delight to structuring and managing your project. It was so slick that when making my first Angular app, I also ended up learning CoffeeScript to kill two birds at once...Yeoman made this otherwise prickly situation as smooth as possible.

And I also would agree that directives are Angular's killer feature...and unfortunately for me at the time, one of the hardest to grok because of their magic. Anyone writing an Angular tutorial would do a great service to emphasize the power and use cases for directives.