Swift takes a lot of good choices from other languages and puts them together in a cohesive package. It's not necessarily something on the bleeding edge of a new frontier, going someplace that nothing else has gone, but it is a pleasant way to use fairly recent programming language theory in your day-to-day code.
Oh nothing. It makes sense for Apple to want a more modern language to replace the now aging Objective C. In turn, that meant Swift was not on my list of languages to try, but instead on my, possibly a language I'll be forced to use one day list, just as Java, C#, JS, and all are, by simply being defacto languages for some platform which depending what you work on, you have no choice over.
But then I started seeing people in the comments claiming things like: "Swift is one of the most interesting languages right now". So I was like... Hum okay, what did I overlook?
Now, I'd be okay with people saying that it improves drastically on C# and Java. If people think Swift is a dramatic improvement because of the sum of its part, like just little details here and there that end up making it much better, and they think that in turn could lead Swift to replace both Java and C# if it gained support on other platforms. That could make it quite interesting as well. So I'd be up to listen to those arguments as well.