AFAIK, Appcode doesn't work at all in Xcode 6. I can't create a basic project without getting the SegueKind.ShowDetail no enum error. I'm evaling it and well, this ain't good.
Which kinda means I'm going to have to stick with Xcode for now, which sucks. I LOVE IntelliJ. And JB has always exceeded my expectations. This isn't a Swift issue, I tried a Obj-C project from scratch.
Am I missing something?
Also, for Swift, code auto-formatting doesn't appear to do anything. I'm okay if that's a 'swift is too new to keep up with' but the inability to open a storyboard, that's kinda basic.