Comment by yurishimo

Depends on the tool. We (mac people) tend to prefer native toolbars and settings menus, but I would say the days of relying on a "native" textarea or button are now behind us.

The other thing I find most Mac people appreciate is a shared understanding of hotkeys and if your app goes against the norm, one of the first feature requests will be to add configurable hotkey support.

Unfortunately, Apple has dropped the ball with their newest native apps in regards to UX and it will take years for them to go back and improve things. The new OS this fall is aiming to start that process, but it will still be a band-aid in some respect.