The swizzling is pretty cool, rather special purpose but it makes sense that Ginger Bill wanted this and it's Ginger Bill's language.
Odin's "standard library" stuff is very silly, it still feels like we were just copy-pasted the lead developer's "useful stuff" directory. Bill doesn't feel there's a value to actual standard libraries, so instead here's... whatever. He insists that's not what's going on here, but that doesn't change how it feels.
Odin has the best approach for "standard library" by blessing/vendoring immensely useful libraries
Odin also has the best approach for Vector Math with native Vector and Matrix types