I have been using a MacBook Air for less than a year and I don't see the greatness. Screen is okay, touchpad is a bit better but a lot bigger than at my HP Elitebook, battery time was twice better but it was degraded faster than elitebook, it is 3 hours vs 5 now for the same regular devops tasks (it was 4/8).

Mac OS... It is horrible. I can't actually describe this, maybe I'm just a linux binded user and gonna prefer Manjaro KDE forever.