I’m not sure if you ember veterans can tell, but the current state of documentation makes the learning curve of ember almost a vertical line, and with multiple alternative out there, that isn’t a good thing.
So on the front page, you see a marquee to get you started
npm install -g ember-cli ember new my-app
Congratulations new user, you have just broken every single ember.js book, and almost every ember tutorial on the internet. And the official guides are now just wrong enough to make you pull your hair out.
ember-cli does look like a great improvement, but I wouldn’t promote it to all new users until the official guides have been updated, and there’s a solid, easy to understand migration guide so users can still read the current books (that came out last year!)