Great. Great great great. A thousand times great. We've been slowly converting our iOS projects over to Swift over the past year and the results have been tremendous (a ~40% drop in LOC from ObjC, among many other benefits). Really the only language-level feature that feels missing for server development is first-class support for asynchronous/concurrent operations, but that's coming.
Swift is truly a 'best of most worlds' language. Typed, but without the boilerplate seen in a lot of typed languages. Syntax that makes sense and is consistent. Immutability strongly encouraged, but not required. OO if you want it. First class functions. Etc, etc, etc. It's truly a dream to work in, can't wait for server-side to get a little more mature.
Swift is truly a 'best of most worlds' language. Typed, but without the boilerplate seen in a lot of typed languages. Syntax that makes sense and is consistent. Immutability strongly encouraged, but not required. OO if you want it. First class functions. Etc, etc, etc. It's truly a dream to work in, can't wait for server-side to get a little more mature.