Bootstrap Magic featuring Boostrap 3
pikock.github.io
pikock.github.io
Once I figured that out: Awesome.
I never noticed the "Apply" button, and I'm not on the page anymore.
I would guess that a significant proportion of users will quickly figure out the page does NOT auto-update and walk away having wasted time, never seen it work.
Like I did.
However, I have no idea what your JS is doing but it spiked my browser CPU usage to 100% on a core and made the whole thing fairly unresponsive until I closed that tab.
DOM manipulation in a controller is something you can't do and who says controllers, says services too.
On the other hand, the double ng-repeat could be a hot spot for the bad performance.
Don't get me wrong, the app is awesome, awesome idea but the implementation doesn't respect the angular way so it is really slow.