I’ve used Linux for years, but recently got a MacBook Air so I have something small, light and reliable for use out in the field.
I can’t wait to get my new desktop machine so I can get back to Linux.
Mac OS X is not horrible, but it’s not the pinnacle of perfection that it’s claimed to be. And it’s not very configurable.
Mac OS X is highly configurable if a person takes the time to learn the commands. But most people don't want to spend time configuring their computers. They just want their computers to work without a lot of fuss. And I would say that the Mac does that better than any system I have ever used.