xCode (sic) is far from phenomenal. I have been writing iOS apps since 2008 and Mac apps longer than that and Xcode has made significant progress, but is still mediocre.

It's very telling that Jetbrains managed to pull AppCode out of nowhere and blitz Xcode. I had never before used an IntelliJ-based IDE, but within a week or two my productive increased severalfold. It really puts Apple's efforts to shame.