The magic is that it works...unlike Windows.
I tried coming back to Windows 10 briefly and holy shit what a pile of crap... since when did ads become acceptable in a OS? Oh and it bricked itself after an update and Microsoft demanded I buy another copy because aparently putting in a new mainboard = new PC
Other than millenium and vista i havent had issues with windows. Though i did stick with xp to the end, and have 7 now. Windows is all about picking the right version and skipping the bloated crap.
Also the mother board thing is pretty standard, at least you can do (swap parts) that with a pc.
Works is a broad term, i never found macs worked well with real professional users. My experience was mirrored by my film partner, and much of my comp sci class.