Ask HN: iOS Storyboards considered harmful?

Hey guys, I'm just getting started in iOS development with Swift, and I've found Storyboards to be pretty helpful so far. Editing code in Xcode feels really clumsy, however, and I'd much prefer to develop in Sublime. My only reservation with that is that I'd be forced to either A) use 2 editors, or B) forgo Storyboards.

I've found a lot of commentary online supporting option B, railing against Storyboards/Interface Builder, extolling the benefits of code-based UIs. This approach has the potential to appeal to me, since it's exactly how I feel about developing interfaces for the web.

So, are storyboards bad? Should I just learn to design my apps through code? Is there anything besides the visual feedback of storyboards that I'd be giving up by switching to a pure-code workflow?