"Getting it right" isn't very specific. If you narrow your browser window, you can see that the layout breaks somewhat, so that would be a No from me, though I'm not familiar with the framework, and I'm not sure if those issues would matter on a mobile device, though the best thing to do is just test as many as you can.
Personally, I think it's easier to do this sort of thing without a framework, but I know the framework fans will continue to sing their praises. But I'd rather put my energy into learning how media queries work etc. than trying to work out how a complex framework is meant to be used.