I used to make fun of the Mac, calling it mickeytosh, and deriding the bad design for the OS. See, I'm a hardcore Unix bigot and I truly demand stability from my computing environment, and the old-style Mac OS (OS 9 and before) just was incapable of doing it. The incapability is based in the design, as there was no barrier between applications and the lack of proper multitasking.
But here I am, now into my fourth year of using Mac. I am dearly happy with this computer and having switched.