I am using Swift on Windows with great success, but without async/await (or at least “very cautiously”) because async/await still waits for the according optimization in LLVM for Windows on x86_64. I think this issue should be fixed before advertising the Windows port. (@Douglas_Gregor recently mentioned that this should be fixed.) So yes, some advertising for the otherwise great Windows port would be nice, but first the whole (!) Swift language should be usable on Windows.