In terms of its language features it has all of those and more, sometimes too many in my opinion.

I personally favour languages that are clear in their vision. However at its core Swift is a highly performant language that is designed really well, has beautiful syntax, and in the last 5 or so years I have been impressed with its direction. It is being developed by a good team who listen to their community but not at the expense of the languages vision.

My favourite aspect of using it though is its versatility. Wether you’re working on embedded systems, a game, a web server, or even a static site generator, it always feels like the language is there to support your vision, but still give you the fine grained control you need to optimise for performance.

I also collaborate with a friend who is a Rust developer and he’s always super happy to work on a Swift project with me so I feel like that’s enough praise when you can pull a rest dev away from their beloved.

Over the last year I’ve started to write every new project using it. On windows, on linux and mac.

It is honestly a wonderful language to work with. Its mature, well designed, has a lot of similarities to rust. Has incredible interop with C, C++, Objective-C and even Java as of this year which feels fairly insane. It also is ergonomic as hell and well understood by LLM’s so is easy to get into from a 0 starting point.