Cocoa has its issues, but I find it much more pleasant to use than anything based on front end web tech despite that. I find myself wishing I could use it on Windows and Linux.

I find many of the frustrations people have with desktop Cocoa come from the bizarre need to reinvent the wheel with a custom UI theme. If you stop fighting the system and instead go with a native look with well chosen accents, life is much easier. Native can look great with a little attention to detail.